Answer:
An allele is a variant form of a gene. Chromosomes are structures in cells that contain genetic material and have the capability to self-replicate. Phenotype is the set of observable physical or biochemical characteristics of an individual, resulting from the interaction of its genotype with the environment. A gene is a unit of heredity in a living organism, which can be passed on from one generation to another. Genotype is the genetic makeup of an individual organism, usually referring to the particular alleles of each gene it carries. Natural selection is the process by which heritable traits become more or less common in a population due to differential reproduction rates, leading to the evolution of new species. Sexual selection is a type of natural selection in which individuals with certain desirable traits are more likely to mate and reproduce than those with other traits. Gene flow is the transfer of genetic material between populations, or among individuals within a population. Genetic drift is the change in the gene frequency of a population over time due to chance events. A biome is a large-scale ecological unit characterized by distinct life forms, climate, soils and other features. The tundra is a biome characterized by very low temperatures, short growing seasons and permanently frozen ground. Tropical forests are dense, humid areas of vegetation located near the equator. Canopy (in relation to trees) is the uppermost layer of a forest, consisting of the crowns of the tallest trees. Temperate deciduous forests are forests that lose their leaves during fall and winter, growing them back during spring and summer. Kingdom (in taxonomy) is the highest biological classification category, above phyla. Genus is a grouping of similar species. Species is a group of organisms with common characteristics that are capable of interbreeding and producing fertile offspring. Binomial nomenclature is a system of scientific nomenclature in which each species is assigned an identifying name made up of two terms: the genus and the species.
An allele is a variant form of a gene.
Chromosomes are structures in cells that contain genetic material and have the capability to self-replicate.
Phenotype is the set of observable physical or biochemical characteristics of an individual, resulting from the interaction of its genotype with the environment.
A gene is a unit of heredity in a living organism, which can be passed on from one generation to another.
Genotype is the genetic makeup of an individual organism, usually referring to the particular alleles of each gene it carries.
Natural selection is the process by which heritable traits become more or less common in a population due to differential reproduction rates, leading to the evolution of new species.
Sexual selection is a type of natural selection in which individuals with certain desirable traits are more likely to mate and reproduce than those with other traits.
Gene flow is the transfer of genetic material between populations, or among individuals within a population.
Genetic drift is the change in the gene frequency of a population over time due to chance events.
A biome is a large-scale ecological unit characterized by distinct life forms, climate, soils and other features.
The tundra is a biome characterized by very low temperatures, short growing seasons and permanently frozen ground.
Tropical forests are dense, humid areas of vegetation located near the equator.
Canopy (in relation to trees) is the uppermost layer of a forest, consisting of the crowns of the tallest trees.
Temperate deciduous forests are forests that lose their leaves during fall and winter, growing them back during spring and summer.
Kingdom (in taxonomy) is the highest biological classification category, above phyla.
Genus is a grouping of similar species.
Species is a group of organisms with common characteristics that are capable of interbreeding and producing fertile offspring.
Binomial nomenclature is a system of scientific nomenclature in which each species is assigned an identifying name made up of two terms: the genus and the species.
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the production of multiple copies of a single gene is called
Answer: Gene Cloning / Gene Duplication
Explanation:
When we pop a synovial bubble, the bubble is filled with nitrogen gas where does this nitrogen gas come from
Answer:
Nitrogen gas in joints
Escaping gases: Scientists explain that synovial fluid present in your joints acts as a lubricant. The fluid contains the gases oxygen, nitrogen, and carbon dioxide. When you pop or crack a joint, you stretch the joint capsule. Gas is rapidly released, which forms bubbles.
A measure of the strength of the relationship between individual differences in a given trait and individual genetic differences is called the?Heritability Coefficient
The heritability coefficient is a measure measuring the strength of the link between individual genetic variants and personality factors in a particular trait.
When determining how much of an individual's variation in a trait may be attributable to genetic variances, the term "heritability" is employed. Pay attention to how it sounds. The percentage of variance in any population trait that may be attributable to heritable gene factors (HAYR-ih-tuh-BIH-lih-tee). Estimates of heritability are frequently given in percentages and range between 0 to 1. Genetic variation divided by total phenotypic variance represents heritability, the relative contribution of genetic effects to trait variation. Character is a heritable trait that differs from person to person. The correlation coefficient gauges how strongly a variables (Y) and an independent variable (X).
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what is the moveable end of the muscle
Insertion is the moveable end of the muscle that attaches to the bone being pulled.
Any muscle generally has two ends- one moveable and the other fixed. The fixed end is attached to a stabilized bone and is called origin, while the free end, which is moveable, is attached to the bone being pulled. The free and moveable end is, therefore, called the insertion.
There are generally three types of muscles- skeletal, smooth, and cardiac muscles. The muscles responsible for any movement in the body are the skeletal muscles. This is why they are also called the voluntary muscles. each muscle joins the bones at various points through tendons.
Other than skeletal muscles, smooth muscles are responsible for regulating involuntary functions. The cardiac muscles are only found in heart and regulate its movements.
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what is the important part in regulating spindle fiber during cell division
Answer:
The important part in controlling spindle fiber is the centrosome.
The mushroom poison muscarine can bind to receptors on ________. A) all effector cells stimulated by postganglionic cholinergic fibers B) the hormone producing cells of the adrenal medulla C) cell bodies and dendrites of parasympathetic postganglionic neurons D) cell bodies and dendrites of sympathetic postganglionic neurons
All effector cells triggered by postganglionic acetylcholine fibers have receptors that the deadly mushroom toxin muscarine can attach to.
The answer to the question is A.
What are cells called?The majority of all living organisms are made up of cells. The human body is made up of trillions of cells. They not only absorb nutrients from food and turn those carbohydrates into energy, but also give the body frame and carry out certain functions.
What are cell's fundamentals?A cell is a collection of cytoplasm that has a cell membrane surrounding it on the outside. All living things are made up of cells, which are the lowest structural components of living matter and therefore are typically microscopic in size. The majority of cells have a or more nuclei as well as other organelles that perform a range of functions.
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What role does nondisjunction play in the formation of a fertile allopolyploid hybrid?
A. It doubles the chromosome number in the hybrid. B. It allows gametes of the two parent species to combine. C. It causes the chromosomes to line up at the center of the cell during mitosis. D. It breaks down chromosomes that don't exist as homologous pairs.
Nondisjunction plays a role in the production of a viable allopolyploid hybrid by doubling the number of chromosomes in the hybrid. Option A is correct.
Nondisjunction arises when chromosomes fail to separate during meiosis, resulting in gametes with an incorrect number of chromosomes. Nondisjunction occurs when homologous chromosomes fail to disjoin appropriately during meiosis. This leads in the creation of gametes with more or less chromosomal content than usual. As a result, the individual may have a trisomy or monosomy syndrome.
Nondisjunction occurs when a pair is homologous chromosomes fails to split or segregate during anaphase, causing both chromosomes to pass to the same daughter cell. This is most likely to happen during meiosis, but it might also happen during mitosis to form a mosaic person.
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mitosis, followed by cytokinesis, results in the formation of two genetically identical daughter cells. this is because
Mitosis, followed by cytokinesis, results in the formation of two genetically identical daughter cells because: all the genetic material is duplicated then segregated equally to the daughter cells.
Do all of the daughter cells share the same genetic makeup?Daughter cells that really are genetically similar to their parent cells are created during mitosis.The cell divides its copied chromosomes evenly to ensure that each cell has a full set before copying, or "replicating," its chromosomes.
Which stage of mitosis ensures that the genetic material of daughter cells is distributed equally?However, the duplicated chromosomes must be properly arranged before being divided and equally distributed to the two daughters during mitosis, and this process starts in the S phase.
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transmembrane proteins move ions or molecules across a membrane against their concentration gradient is definition from ?
Active transport is the pumping through a membrane against a concentration gradient of molecules or ions. It needs energy and a combination of transmembrane proteins known as a transporter.
There are two types of active transport mechanisms. Primary active transport directly moves molecules across a membrane against their gradient using a source of chemical energy, such as ATP. On the other hand, secondary active transport, also known as cotransport, leverages the electrochemical gradient created by active transport as a source of energy to move molecules against their gradient, negating the need for a chemical energy source like ATP. The transport procedure is regarded as an example of primary active transport because it utilizes ATP as an energy source.
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the random movement of molecules down their concentration gradient is called______
The random movement of molecules down their concentration gradient is called diffusion.
What is diffusion?Physically, diffusion is the movement of particles or molecules from a high-concentration region to a low-concentration one. This movement happens as a result of the molecules' or particles' random motion, and it persists until the particle concentration is uniform throughout the system. The dispersion of signalling molecules throughout the body and the exchange of gases in the lungs are just a few examples of the numerous natural processes that depend on diffusion. The movement of atoms, ions, and molecules in diverse materials and systems is explained using this crucial idea in chemistry and physics as well.
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What is the difference between exocrine vs endocrine glands?
The primary distinction between the two is that exocrine glands discharge substances into a ductal system to an epithelial surface, whereas endocrine glands secrete products directly into the bloodstream.
Exocrine gland should be defined.An exocrine gland is a gland that secretes on the surface or into a specific location via ducts in order to execute a metabolic activity.
Define the term endocrine glands.Ductless glands are endocrine glands. They emit hormones that aid in the coordination of our activities. These hormones are secreted into the bloodstream and circulate throughout our bodies.
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Which of the following metabolic pathways is common to both aerobic and anaerobic processes of sugar breakdown? t of Select one: A. the citric acid cycle lestion o B. the electron transport chain O C. glycolysis o D. conversion of pyruvic acid to lactic acid
Glycolysis is metabolic pathways is common to both aerobic and anaerobic processes of sugar breakdown
Both anaerobic and aerobic conditions can result in glycolysis. Pyruvate enters the citric acid cycle under aerobic conditions and proceeds through oxidative phosphorylation, which results in the net synthesis of 32 ATP molecules.
Without the aid of an external electron acceptor like oxygen, glucose is broken down to pyruvic acid through a process called glycolysis. It happens within the cytoplasm of the cell, making it a part of both aerobic and anaerobic organisms.
Because glucose is the only source of energy and glycolysis is an oxygen-free process, it occurs during both aerobic and anaerobic respiration. Hence, this process, which is similar to both aerobic and anaerobic respiration, is unaffected by the presence or absence of oxygen.
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The Embroyblast Eventually Differentiates Into The
A. Zygote
B. Blastocyst
C. Primary Germ Layers
D. Sperm And Egg
Eventually, the embryoblast differentiates into the zygote.
What differentiates from the embryoblast?Epiblast and hypoblast are formed during differentiation of the embryoblast. They are collectively known as the bilaminar disc. The procedure starts around the eighth day of pregnancy. The anterior visceral endoderm will be formed by some hypoblast cells.
Does the embryoblast develop into the child?It has an inner cell mass (ICM), also termed an embryoblast, which later develops into an embryo, as well as a layer of trophoblast cells on the outside known as the trophectoderm. This layer encloses the inner cell mass and the blastocoel, a hollow filled with fluid.
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Need help with this
Answer:
I know for sure cigarette smoke, asbestos, but I'm not sure about the other two.
Explanation:
the forelimbs of mice, bats, and whales all have a similar bone structure. this is an example of which type of evidence of shared ancestry?
The example of shared ancestry depicted by the forelimbs of mice, bats, and whales all having a similar bone structure is of: homologous structures.
Homologous structures are the those organs or body parts that exist in different species but have common structure. This indicates that these species evolved from a common ancestor. The homologous organs may adapt to different functions according to the species.
Ancestry is defined as the origin or the roots of different living organisms. If two or more species have a shared ancestry this means that they originated from a common ancestor. Thus, people having common ancestors have genetic relationships and thus have similar structures.
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Classify each of the following simple carbohydrates as disaccharides or monosaccharides.1. Fructose2. Lactose3. Sucrose4. Maltose5. Glucose
Monosaccharides and disaccharides are two categories for simple carbohydrates. Glucose, fructose, and galactose are all monosaccharides, which are compounds that only have one molecule. Lactose, maltose, and sucrose are disaccharides because they each have two molecules.
Is fructose a simple sugar?
Fructose, glucose, and lactose are examples of simple sugars (or carbs), and they are also present in wholesome whole fruits. Starchy vegetables, whole grains, rice, breads, and cereals are examples of foods that include complex carbohydrates (also known as starches).
Maltose is either simple or complicated.
Monosaccharides (glucose, galactose, and fructose) and disaccharides are examples of simple carbohydrates (sucrose, lactose, and maltose). The polysaccharides starch (amylose and amylopectin), glycogen, and fiber are examples of complex carbohydrates.
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what base pairs with the codon on the mrna molecule?
The aminoacyl-tRNA anticodon base pair up with the codon present on the mRNA molecule.
During the process of translation, the large subunit of the ribosome contains three sites basically at which the tRNA molecules is able to bind. The A (which is amino acid) site is the location where the aminoacyl-tRNA anticodon base are able to pair up with the mRNA codon, and this happens to ensure that the correct amino acid is being added to the polypeptide chain which is growing.
The P (which is the polypeptide) site is basically the location where the amino acid gets transferred from the tRNA onto the growing polypeptide chain. Finally, the E site or the exit site is where the empty tRNA is present before it gets released back into the cytoplasm.
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pacinian corpuscles are sensory receptors that respond to
Pacinian corpuscles are rapidly-adapting, deep receptors that respond to deep pressure and high-frequency vibration.
What is the function of corpuscles?Meissner corpuscles consist of a cutaneous nerve ending responsible for transmitting the sensations of fine, discriminative touch and vibration. Meissner corpuscles are most sensitive to low-frequency vibrations between 10 to 50 Hertz and can respond to skin indentations of less than 10 micrometers.
What color are corpuscles?It is to the aggregation of the red corpuscles that the blood owes its red hue, although when examined by transmitted light their color appears to be only a faint reddish yellow. The corpuscles vary slightly in size even in the same drop of blood, but the average diameter is about 7.5μ, and the thickness about 2μ.
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Does anyone know what the order is?
Samples were treated with chemicals to release DNA from cells
Different restriction enzymes were used to produce DNA fragments
DNA fragments were combined to produce recombinant DNA
Recombinant DNA was inserted into bacteria for storage and sequencing
What is the human genome?The human genome aims at being able to get together all the genes taht can be found in the human body. This is a large project that have been in progress for quite some time.
At the completion of the project, the sequence of all the DNA that can be found in the human begin would have been successfully obtained.
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a 5% urea solution is hypotonic to a 10% urea solution.truefalse
It is TRUE that 5% urea solution is hypotonic to it due to the fact that 10% urea solution is more concentrated.
Urea molecules, a solute, are present in lower concentrations per unit volume in a hypotonic solution than in a normotonic solution. Water molecules will try to move from the hypotonic solution, which has a lower solute concentration, to the hypertonic solution, which has a higher solute concentration, in an effort to balance the solute concentration on both sides of the membrane when a semipermeable membrane separates two solutions with different solute concentrations.
Because the 10% urea solution contains more urea molecules than the 5% urea solution in this situation, it is more hypertonic than the 5% urea solution. To balance the concentration of urea molecules on both sides of the membrane, water molecules would have a tendency to flow from the 10% hypertonic solution into the 5% hypotonic solution.
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What is the role of mitochondria in red blood cells?
The body's process of producing new blood cells, known as hematopoiesis, is aided by mitochondria, which are typically known for their involvement in the creation of energy in cells.
Recent study from Northwestern Medicine published in Nature Cell Biology has demonstrated this. Both mitochondria and nuclei are absent from the red blood cells (erythrocytes) of mammals. As there are no mitochondria, oxygen is not used by the RBC and is instead transferred directly to the places that need it.
Moreover, RBC lacks other organelles such the Golgi apparatus and endoplasmic reticulum. Mature red blood cells are unable to produce energy through the Krebs cycle (oxidative) because they lack nuclei and mitochondria. Erythrocytes instead rely on the Embden-Meyerhof pathway's anaerobic glucose conversion to produce and store high-energy phosphates.
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If the sperm cell of an organism contains 14 chromosomes, how many chromosomes are in an autosomal cell of this organism.
If a sperm cell of an organism contains 14 chromosomes, the number of chromosomes in an autosomal cell of this organism is 28.
How so many clones would a 14-chromosome cell produce?Mitosis is a kind of cell division that produces two daughter cells with the same number of chromosomes as the parent cell.The two daughter cells will have 14 chromosome each if the mother cell had 14 chromosomes.
How many chromosome 14 copies are there?Humans typically have two copies of their 46 chromosomes, which are split into 23 pairs.One of the pairings is made up of two copies of chromosomes 14, one from each parent.
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A shielded nucleus will absorb ______ from a deshielded nucleus and will have a ______ chemical shift.
A shielded nucleus will absorb upfield from a deshielded nucleus and will have a lower chemical shift.
What in NMR is shielded or deshielded?
When the electron density around the nucleus is high in NMR, the magnetic field that opposes the electrons is likewise increased, providing significant shielding. Deshielding occurs when the nucleus's surrounding electron density decreases, the magnetic field that is obstructing it weakens, and the nucleus begins to sense more of the external magnetic field.
Radiation shielding is the insertion of a protective shield between an ionizing radiation source and the object to be protected in order to lessen the potential harm to sensitive or biological components, particularly during transport.
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The volume of blood that leaves the _____________ must be close to the volume that returns.
capillary
pressure
hydrostatic pressure
arteriolar
plasma proteins
colloidal osmotic pressure
venular
The amount of blood that exits the capillary and the amount that returns must be comparable. Option a)
What is arteriolar blood flow?Red blood cells, also known as arteries, carry oxygen and vitamins from the heart to the tissues of your body. The oxygen-poor blood is returned to the heart through the veins (blue). The primary artery that exits the heart, the aorta, that's where arteries are created. They transport oxygen-rich blood from the blood to all the tissues in the body.
What are arterioles used for?As the primary location of total peripheral resistance, arterioles play a role in maintaining the average arterial pressure for tissue perfusion. They also contribute significantly to the regulation of blood circulation in an organ- or tissue-specific way by altering the diameter.
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inner mass cells are derived from the blastocyst and are considered ______
A blastocyst is made up of an inner group of cells with an outer shell. The inner group of cells will become the embryo.
What is the embryo made of?The fertilized egg cell divides into two cells. Each cell then divides into two additional cells and so on until, after a few days of cell division, a tiny embryo develops. In the early stages, the microscopic embryo is made up of cells that have the potential to develop into all types of cells.
Where is embryo located?Uterus. The uterus, or womb, is a hollow, pear-shaped organ ln a woman's lower stomach between the bladder and the rectum. It sheds its lining each month during menstruation.
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What is the ICD-10-CM code for uterine fibroid?
Leiomyoma of the uterus, undetermined is medically categorised as an ICD-10 code D25. 9 under the heading "Neoplasms" by the World Health Organization.
Noncancerous uterine growths known as uterine fibroids are common during the travail times. Uterine fibroids, also known as leiomyomas or myomas, do not enhance the threat of uterine cancer and hardly ever turn into the complaint. ICD-10-CM law D26.9, which is billable/ specific, can be used to denote a opinion for fiscal payment.
Uterine fibroids come in three different main orders. Intramural fibroids develop inside the uterine wall's musculature. The uterine depression is beetled into by submucosal fibroids. Subserosal fibroids bag from the uterus's wall. Myomectomy. A myomectomy is an operation to remove fibroids while conserving the uterus. For women who have fibroid symptoms and want to have children in the future, myomectomy is the stylish treatment option. Myomectomy is veritably effective, but fibroids canre-grow.
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Classify each description as true of introns only, true of exons only, or true of both introns and exons. Answer Bank generally absent from bacterial genomes present in eukaryotic genomes code for a protein
Sort each statement into whether it applies to exons only, introns only, or both exons and introns. Imagine that an intron-rich eukaryotic gene was being translated by RNA polymerase.
An eukaryotic cell is what?
The Eukaryotic Cell The phrase "Eukaryotes" derives from the Greek words "eu," which means "good," and "karyon," which means "kernel," and so means "good or real nuclei." Prokaryotes are substantially smaller and less complicated than eukaryotes. All except one of the main kingdoms are represented by them.
What distinguishes prokaryotic and eukaryotic organisms?
The lack of a nucleus distinguishes prokaryotic cells as a primordial kind of cell. Prokaryotes also lack cellular organelles that are attached to membranes. Prokaryotes are only monocellular organisms. A eukaryotic cell is what? Eukaryotic cells are those that have a real nucleus and organelles that are attached to membranes.
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Why is 5´ cap and poly-A tail important?
Eukaryotic messenger RNA (mRNA) molecules have two structural components called the 5' cap and poly(A) tail that are crucial for translation initiation, RNA processing, and gene expression.
The freshly produced mRNA molecules have a modified guanine nucleotide called the "5' cap" appended to their 5' ends.
The 5' cap is essential because it aids in shielding the mRNA from exonuclease degradation, improves translation efficiency by encouraging the recruitment of ribosomes to the mRNA, and makes splicing easier by designating the beginning of the coding sequence.
Adenosine nucleotides are attached to the 3' end of mRNA molecules to form the poly(A) tail.For mRNA degradation and mRNA export,the poly(A) tail is very essential.
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in the sense of alternation of generations, how many generations are included in a mature pine seed?
a. two generations of tissues
b. three generations of tissues
c. one generations of tissues
In the sense of alternation of generations, two generations of tissues are included in a mature pine seed. Therefore, the correct option is A.
What is alternation of generation?Alternation of generations is a type of life cycle that is characteristic of many plants and some algae, where the organism alternates between two distinct multicellular generations: a haploid (n) gametophyte generation and a diploid (2n) sporophyte generation.
In the life cycle of pines, the sporophyte generation produces cones that contain haploid spores. The male gametophytes produce sperm, while the female gametophytes produce eggs. Fertilization between the sperm and egg results in the formation of a diploid zygote, which develops into the sporophyte generation.
In the sense of alternation of generations, a mature pine seed contains tissues from both the sporophyte and gametophyte generations. Therefore, the correct option is A.
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What is the difference between leading strand and lagging strand synthesis? Which strand requires just one primer? Which strand requires multiple primers? Are the primers RNA or DNA?
Leading and lagging strand synthesis are two processes that occur during DNA replication. The leading strand is the strand that is synthesized continuously in the 5' to 3' direction, while the lagging strand is the strand that is synthesized discontinuously in the 5' to 3' direction, forming short Okazaki fragments.
The leading strand requires just one primer, which is usually synthesized by the enzyme primase. This primer is made of RNA, and it provides the 3' end for DNA polymerase to start synthesizing the new strand.
The lagging strand, on the other hand, requires multiple primers because DNA polymerase can only add nucleotides in the 5' to 3' direction. As the replication fork opens, new primers are required to initiate the synthesis of each Okazaki fragment.
Both primers on the leading and lagging strands are made of RNA, not DNA. The primers are complementary to the DNA template strand and provide a free 3' OH group for DNA polymerase to extend the new strand. Once the RNA primers are laid down, they are eventually replaced by DNA nucleotides through the process of DNA synthesis.
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