The nucleotides which base pairs together in the DNA helix are adenine(A) to the thymine (T) and Cytosine(C) to the Guanine (G). A purine always base pairs against a pyrimidine.
What are nucleotides?Nucleotides are the monomeric units of the genetic material i.e., DNA present in the nucleus of cell. Nucleotides are made up of three components which include a nitrogenous base, a deoxyribose sugar in case of DNA or a ribose sugar in case of RNA, and a phosphate group moiety.
The nitrogenous bases are of two types on the basis of their structures: Purines and Pyrimidines. Purines are double-ring structures which contain an imidazole ring attached to a pyrimidine ring. This include Adenine and Guanine. Pyrimidines are single-membranous structures which are similar to pyridine. Pyrimidines include cytosine, thymine and uracil. In DNA, thymine is present whereas in RNA, uracil is present.
A purine always base pairs with a pyrimidine. In case of DNA, an adenine forms two hydrogen bonds to base pair with thymine and vice versa whereas guanine forms three hydrogen bonds while pairing with cytosine residues and vice versa.
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Sorting items into different categories is known as what?

Answer:
Classifying
Explanation:
I looked it up for u :D
A scientist should be creative in order to?
Answer:
Scientists use creativity to determine which smaller questions are likely to yield results, imagine possible answers to their questions, and devise ways to test those answers.
Explanation:
Answer:
Find out new things.
Explanation:
If every scientist that ever existed wasn't a little creative, then how would they figure out so many cool new things.
Which of the following is an example of heat transfer by conduction?
A shirt warmed when it touches a hot iron
Warm and cold water circulating in the ocean
Sunlight warming a room early in the morning
Hot air rising and cold air sinking on a beach
Answer:
A shirt warmed when it touches an iron
Explanation:
Conduction heat transfer is the transfer of heat by means of molecular excitement within a material without bulk motion of the matter. Conduction heat transfer in gases and liquids is due to the collisions and diffusion of the molecules during their random motion.
Conduction is the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Upon examining a sample consisting of 100 cells, you find the following distribution of cell phases. If you know that the cell cycle for this type of cell takes two hours, how long, on average, does the cell spend in prophase
Answer:
the time that cell spend in prophase is 30 minutes
Explanation:
The computation is shown below:
= Number of cell ÷ sample
= 25 ÷ 100
= 1 ÷ 4
Now it takes two hours
So,
= 1 ÷ 4 × 2 hours
= 0.5
This 0.5 represent the 30 minutes
Hence, the time that cell spend in prophase is 30 minutes
Answer: 30 minutes
Explanation: I just did the gizmo myself
How many strands of mRNA are transcribed from the two “unzipped” strands of DNA?
Answer:
Since DNA is double-stranded, two different RNA molecules could in principle be transcribed from any gene, using each of the two DNA strands as a template.
Explanation:
During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA
PLEASE HELP OFFERING A LOT OF POINTS Why is it important to NOT OVER consume energy resources?
Answer:
Explanation:
"When you consume less power, you reduce the amount of toxic fumes released by power plants, conserve the earth's natural resources and protect ecosystems from destruction. By taking steps to reduce your energy intake, you'll contribute to a healthier and happier world."
Answer: When energy resources are nonrenewable, overconsumption can completely eliminate that resource, limiting available energy resources (often the cheapest, most accessible ones, making energy inaccessible)
Explanation:
Explain why sex-linked traits almost always appear in men instead of women despite being found on the X chromosome.
Answer:
Sex linked is a trait in which a gene is located on a sex chromosome. In humans, the term generally refers to traits that are influenced by genes on the X chromosome. This is because the X chromosome is large and contains many more genes than the smaller Y chromosome.
Where does food enter the blood vessels?
stomach
villi
liver
pancreas
Explanation:
it's a process so it's first goes in the mouth then it goes through the esophagus, stomach, small and large intestine. In the GI tract, nutrients and water from foods are absorbed to help keep your body healthy.
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream. I hope this helps
A(n) ________ is a non-native species that is introduced into an ecosystem and severely disrupts it by competing with native species
Answer:
Invasive Species
Explanation:
Invasive species is defined as the introduction of a non-native species or alien species that significantly affects eight disrupt or modify the ecosystem of the native species.
Such species enter new ecosystem through natural migration or by the activities of other species.
Hence, the correct answer is "Invasive Species".
Why does the world store nuclear waste and not
just shoot it into the Sun or deep space?
Answer:
One is that this is very, very expensive. When the Parker Solar Probe was sent to take measurements of the Sun this year, it cost US$1.5 billion just for a spacecraft the size of a small car to get that far.
It seems simple to shoot an object towards something as big as the Sun - which is 1.3 million times the size of Earth. But it’s actually very hard. The Parker Solar Probe (a NASA robotic spacecraft en route to investigate the outer corona of the Sun) has to swing past the planet Venus seven times to slow itself down enough to get close to the Sun.
The other reason is that rockets sometimes blow up on the launch pad, or in the atmosphere. This would release the waste into the environment and make the problem even worse.
Answer:
what sharrry said e.e
Explanation:
what is a recessive disorder
Answer:
recessive disorder means two copies of an abnormal gene that must be present in order for the disease trait to develop
Answer:
what is a recessive disorder?... A recessive disorder is basically a autosomal recessive disorder, you generally inherit two mutated Genes...A person who has this disorder inherits this from one each parent. These disorders are usually passed on by two carriers. The persons health is rarely affected, but they do have one mutated gene (recessive gene) and including one normal gene (dominant gene) for this condition.
which is the correct
Where would you find a tropical maritime air mass?
(1 Point)
A. Over the ocean near the equator.
B. Over the ocean near the poles (brrrrrr- cold!).
C. Over a continent (land) near the equator.
OD. Over a continent (land) near the poles.
what is the relationship between a sac fungi and the making of bread
Answer:
The sporangium matures and releases spores into the air. There are about 30,000 species of ascomycetes, members of the division ascomycota, commonly called sac fungi. The most well known members of this group, yeasts, are used to make bread rise and to carry out anaerobic fermentation in brewing alcohol.Apr 17, 2006
Explanation:
Explanation:
It gains nutrients from it
.
How do ecosystems function? (Select all that apply.)
1.Abiotic factors depend on biotic factors for food, shelter, protection, and reproduction.
2.Biotic factors are dependent on abiotic factors for food and protection.
3.Abiotic factors affect the type and number of organisms that live in a particular ecosystem.
4.Biotic factors depend on each other for food, shelter, protection, and reproduction.
Answer:
2.Biotic factors are dependent on abiotic factors for food and protection.
3.Abiotic factors affect the type and number of organisms that live in a particular ecosystem.
Explanation:
An ecosystem is an environment that contains both living and non-living parts that actively interacts together.
The living part of the ecosystem is the biotic factors and the non-living parts are the abiotic factors.
The biotic components actively depends on the abiotic component for nourishment. This is exemplified through the process of photosynthesis. Also, the shelter of organisms are derived from the abiotic factors. The abiotic factors have significant impact on the type and number of organisms that live in an ecosystem.If you observe a Full Moon on Jan 12th, on what date would you observe the next New Moon? What date
Answer:
14.765 days
Explanation:
The Moon has 8 different phases that create an entire Cycle starting with a New Moon. The phases of this cycle are the following...
New Moon
Waxing Crescent
First Quarter
Waxing Gibbous
Full Moon
Waning Gibbous
Last Quarter
Waning Crescent
This entire cycle takes 29.531 days to complete the entire cycle and start with the New Moon phase again. Therefore since the Full Moon phase is halfway through the cycle we can divide the total time it takes for the cycle to complete by 2 to calculate the time between a New Moon and a Full Moon.
29.531 / 2 = 14.765 days
How did sexual reproduction speed up the evolutionarily process?
The mixture of two parent's dna and structure
Explanation:
My personal theory is when the dna of two parents mix it tries to make a child with a body structure similar to the parents. The mixing of the body structures was messed up and that is how we evolved, because over time our bodies grew due to the dna of our ancestors. This theory is most likley wrong, but might be close to right.
What is the domain and range of this question?
Answer:
Try this site
Explanation:
M A T H W A Y
it's all one word that is a site that helps me
No spaces when you type it into G O O G L E
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What is the advantage of seasonal migration in butterflies and birds?
Answer:
weather, which is why they migrate during certain times of the year.
Explanation:
in ______, glucose is used to male ATP
Answer
Cellular Respiration
Explanation:
Consider these two characteristics.
Characteristic 1: a scar due to an injury
Characteristic 2: the shape of a person's face
Which characteristic is a trait that can be inherited?
Explain your answer.
Answer:
the face is inherited the scat is a trait
Explanation:
you would be born with your face shape but not a scar
Characteristic 2 is a trait that can be inherited because it is coded by genes. Characteristic 1 is a trait that can not be inherited because it is not coded for by genes. The scar only affected physical appearance because it's a trait that occurred due to injury. The shape of a person's face is something someone's born with because of alleles from parents.
Edg asks for what you included in your response. The details Edg recommends to include are:-Characteristics that are coded for by genes can be inherited.
-The shape of a person’s face is inherited because this characteristic is coded for by genes.
-Characteristics that are due to an environmental factor cannot be inherited.
-A scar due to an injury cannot be inherited because this characteristic is a result of an environmental factor.
Make sure to include all/some of them! Hope this helped!Sincerely,aha im imposterOrganisms change and adapt to their environment over time. This happens by chance, based on genetic variation, survival, and reproductive rates. Drag each description to the appropriate type of evolution that eventually leads to adaptation for survival
Answer:
Coevolution- Bees, Humming birds
Convergent Evolution- Bats, Birds, Whales, Sharks, Penguins
Divergent Evolution- Kit fox, Galapagos Tortoises
Explanation:
i took the test
What are considered an oxidizing mutagenic agent
Answer:
X - rays are considered an oxidizing mutagenic agent
Perform the following
mathematical operation, and
report the answer to the correct
number of significant figures.
7.9256/4.372 = [?]
Answer:
1.813
Explanation:
HELP ASAP
1.Is it weather or climate?
The clouds seem to be moving quickly, and the wind has started to blow harder.
2.Is it weather or climate?
Mobile gets about 66 inches of rain a year.
3. Is it weather or climate?
You want to go on a bike ride, but you decide to go outside to check for dark clouds.
4.Is it weather or climate?
Deserts tend to be hot and dry.
Answer:
1 =climate 2=weather 3=weather 4=climate
Explanation:
might be wrong tried my best.
Environmental science includes elements of other related sciences. Give 2 examples of related sciences.
Answer:
biology and earth science
Answer:
Biology and Earth science
Explanation:
Select all answer choices that are
examples of PASSIVEtransport
Diffusion
Endocytosis
Facilitated Diffusion
Exocytosis
Active Transport
Answer:
Diffusion, Facilitated Diffusion
Explanation:
Diffusion is a form of passive transport of matter across the cell membrane. Diffusion is a transport substance from the middle with already in the middle with a lower concentration until the concentrations are equalized. The magnitude of the diffusion is proportional to the chemical gradient.
Facilitated diffusion, also called carrier-mediated diffusion, is the movement of molecules across the cell membrane via special transport proteins, which are incorporated into cell membranes.
Please help me! I will give brainliest! <3
Which two traits best help a cactus conserve water in the dry conditions of a West Texas desert ecosystem?
F. Large flowers and sweet fruit
G. Sweet fruit and sharp spines
H. Sharp spines and waxy stems
J. Waxy stems and large flowers
Explanation:
The answers are (h) 2 protect it from predators & waxy stems give the stem support and pack a powerful "poke,"
also, it reserves h2o in the flesh so it doesnt need water too often..
What would you use as a picture or example for these vocab words?