Purebreds in genetics refer to organisms that are bred from a true breeding crossing.
If two different purebreds are crossed, their hybrid offspring will have traits that are heterozygous in nature.
A true breeding cross--- TT x TT will yield TT or
tt x tt will give tt
A cross between two different purebreds - TT x tt will yield all Tt (heterozygous) .
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best answer gets brainliest
Sexual reproduction in animals depends on the production of gametes. Which of these processes produces gametes in animals?
Answer options:
Mitosis Fertilization Meiosis Binary FissionAnswer:
Meiosis
Explanation:
Meiosis is a specialized type of cell division that produces gametes. Diploid parent cells, after DNA replication, undergo two rounds of meiosis to produce four haploid gametes.
Mitosis produces daughter cells for growth and repair of organisms. It produces two identical daughter cells from a parent cells.
Fertilization is when two gametes fuse to create a zygote.
Binary fission is when bacteria undergo asexual reproduction to produce two identical daughter cells.
Option C is correct. the gametes in animals are produced by Meiosis.
Meiosis:
It is a type of cell division in which a cell divide to form four Haploid daughter cells.
It usually occurs in the germ cells to produce gametes.Meiosis is completed in 2 phases.Gametes fertilise to form zygotes.In binary fission is cells divide to form 2 nearly identical cells. In Mitosis, cells divide to form two identical diploid cells.Hence, Options A, B, and D are incorrect.
Therefore, option C is correct. the gametes in animals are produced by Meiosis.
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Parallel forces moving in opposite directions exert
Answer:
When two forces act in the same direction, they add together. When forces act in opposite directions, they are combined by subtracting the smaller force from the larger force. Balanced forces acting on an object will not change the object's motion. When you add equal forces in opposite direction, the net force is zero. Does this help?
Explanation:
Lungs are a part of the excretory system. Lungs produce a waste when we exhale which is
Called A.blood B. Oxygen c.formaldehyde d. Carbon dioxide
Answer:
Crabon Dioxide
Explanation:
Oviously
Answer:
D
Explanation:
The waste our lungs produce is called carbon dioxide.
How are 3D printers useful in studying evolution
Answer:
They can use these printers to make replica or identical copies of things like fossils. Theses are mostly useful because real fossils are rare so they can still study them without possibly ruining an artifact.
Explanation:
An essential component of evolutionary biology, the relationship between form and function is made possible by biomechanics.
What role of 3D printers useful in studying evolution?These printers can be used to create exact replicas of objects like fossils. These are mostly helpful since actual fossils are uncommon, allowing scientists to research them without risking the destruction of an item.
Here, 3D printing presents a chance to create accurate replicas of complete or individual creatures that can be used to test hypotheses regarding the form and purpose of structures.
Therefore, A type of additive manufacturing known as “3D Bioprinting” or “bioprinting” produces 3D structures that are functional 3D tissues by using cells and biomaterials rather than conventional metals and plastics.
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Organisms physical appearance, or visible traits. A.genotype B.phenotype C.Hybird
Answer:
B Phenotype
Explanation:
Think of phenotype like physical- that's how I remember it
Which of the following molecules provides the code of instructions for the
characteristics of an organism?
A. DNA
B. Protein
C. Lipid
D. ATP
Endocrine cells make hormones to send messages from one cell to another. Some of the messages they send are certain types of proteins. These proteins need to be able to travel out of the cell to get to other cells. What part of the cell will make sure the protein signals will be ready to leave the endocrine cells? *
Answer:
The Golgi apparatus is especially developed in cells that have functions related to the secretion of substances, such as cells of the nervous or endocrine system.
Explanation:
The Golgi apparatus is the organelle responsible for most of the modifications that lipids and proteins undergo once their synthesis in the endoplasmic reticulum (ER) has been completed, that is, the Golgi apparatus is a cellular organ whose function is to manage the proteins synthesized by the endoplasmic reticulum in order to transform and export them to the rest of the body. It is made up of flattened cisterns (middle zone) with an entrance zone or face and an exit zone. The proteins enter the Golgi apparatus and are later transported to these cisterns where they are modified by enzymes.
how does studying earths rocks and meteorites support the age of earth?
Answer:
Thousands of meteorites, which are fragments of asteroids that fall to Earth, have been recovered. These primitive objects provide the best ages for the time of formation of the Solar System. There are more than 70 meteorites, of different types, whose ages have been measured using radiometric dating techniques.
Meteorites that fall to Earth represent some of the original, diverse materials that formed planets billions of years ago. By studying meteorites we can learn about early conditions and processes in the solar system's history.
Umm.. maybe my answer is not what you needed
I'm sorry ❤️
Answer:
Scientists think that meteorites can get chemicals such as isopropyl cyanide from a space cloud. So, it’s possible that a meteor that had acquired isopropyl cyanide struck Earth and brought life to the planet.
Explanation:
plato answer
_____________ could slow the expansion of the universe in the far distant future.
A) mass
B) weight
C) gravity
Answer:
C) gravity
Explanation:
Pretty sure!
What is one treatment for a person suffering from the condition above? The person should be given _____________
Answer:
First, what's the condition? Then I could help.
Explanation:
Answer: Insulin.
Explanation: I am diabetic myself lol
yo someone help me out pls
Answer:
very easy
Explanation:
A - 9
B - 1
C - 4
D - 6
A student makes a model of the universe using cubes and rods, as shown.
Each cube
represents
a galaxy.
Each rod represents
the space between
two galaxies.
How should the student change the model to show the expansion of the universe?
Decrease the sizes of the cubes, and decrease the lengths of the rods.
Increase the lengths of the rods, and leave the sizes of the cubes the same.
Increase the sizes of the cubes, and leave the lengths of the rods the same.
Increase the sizes of the cubes, and decrease the lengths of the rods.
Answer:
Decrease the sizes of the cubes, and decrease the lengths of the rods.
Explanation:
A student makes a model of the universe using cubes and rods, as shown.
A student makes a model of the universe using cubes and rods, and the student changes the model to show the expansion of the universe by increasing the lengths of the rods and leaving the sizes of the cubes the same as in the second option.
What is the significance of the universe?The universe is vast, and its full extent is unknown; it contains all galaxies, the solar system, and so on, and it is significant because all the exchange of matter and energy takes place here, and the living form depends on this energy. Apart from scientific theories, there are several philosophical and religious perspectives that are based on the universe.
Hence, a student makes a model of the universe using cubes and rods, and the student changes the model to show the expansion of the universe by increasing the lengths of the rods and leaving the sizes of the cubes the same as in the second option.
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Plz help me with this....
Answer:
It is Condensation.
Explanation:
Predict what will happen to the concentration of pyruvate, NADH and H+ when glycolysis is stopped by 2-deoxyglucose.
When glycolysis is stopped by 2-deoxyglucose ;
The concentration of pyruvate will decrease NADH and H⁺ are used up without replacementGlycolysis is the stage/process in cellular respiration where a molecule of glucose is converted into two(2) molecules of pyruvate, hydrogen ions and water molecules respectively. also the synthesizing of ATP and NADH takes place at this stage of cellular respiration as well.
When glycolysis is stopped by 2- deoxy glucose NADH and H⁺ synthesized will be used up without replacement in the next stages of cellular respiration
Hence we can conclude that When glycolysis is stopped by 2-deoxyglucose The concentration of pyruvate will decrease, NADH and H⁺ are used up without replacement
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Nick’s diet consists mainly of fish. Which of the following is the major food nutrient in his diet? A. carbohydrates B. vitamins C. water D. proteins E. fats
Answer:
I believe the answer is vitamins or fats.
Explanation:
Fish is very good for you! It comes with all sorts of nutrients. There is vitamin D and B2 as well as Omega-3 fatty acids in fish. (There are a lot of other stuff it has but i believe those are the big ones)
That is why i would say it is either fats, or vitamins.
Hope this helps.
What if all plants on Earth die, would animals still survive? Why? Why not?
Answer:
No. The food chain. All animals that eat plants would not have food, leading to their death. The. the animals that eat them wouldn't have food and die. All animals rely on plants, just some aren't directly relying on them.
Answer:
if all plant die on earth animal can't survive because we all know that plant give oxygen, which is most important thing for animal to survive if there is no oxygen no life is possible on earth .
Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in a mRNA strand, but during translation the mRNA strand still creates the same protein. Which type of mutation is responsible for the change in the mRNA base?
silent
missense
nonsense
insertion
Answer:
is a
Explanation:
The type of mutation is responsible for the change in the mRNA base is missense mutation. The correct option is B.
What is missense mutation?A genetic change in which a single base pair replacement changes the genetic code in such a way that such an amino acid other than the customary amino acid at that location is produced.
The main distinction among both nonsense as well as missense mutation is that the former introduces a stop codon into the gene sequence, resulting in premature chain termination.
While the second tries to introduce a distinct codon into the gene sequence, rather than a stop codon, resulting in a non-synonymous amino acid.
A missense mutation can be lethal or potentially cause Mendelian disease; it can also be mildly harmful, effectively neutral, or beneficial.
Thus, the correct option is B.
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Determine if the following statement is true or false.
ADP is a molecule related to the energy-storing ATP and it is repeatedly regenerated back into ATP by having a phosphate group added to it.
- True
- False
Answer:
True
Explanation:
ADP is when ATP loses a phosphate group
It is true that ADP is a molecule related to the energy-storing ATP and it is repeatedly regenerated back into ATP by having a phosphate group added to it.
ADENOSINE TRIPHOSPHATE (ATP):
Adenosine triphosphate also known as ATP is a biological molecule that stores and releases energy for use in living cells. ATP stores energy in its phosphoanhydride bonds that holds its constituent phosphate groups together. This energy is released for use during phosphorylation when one phosphate bond is broken to form ADP molecule (adenosine diphosphate). Therefore, it is true that ADP is a molecule related to the energy-storing ATP and it is repeatedly regenerated back into ATP by having a phosphate group added to it.Learn more at: https://brainly.com/question/3194235?referrer=searchResults
Which of these groups has the most organisms?
A. Genus
B. Species
C. Class
D. Order
Class has the most organisms than genus, species and order.
What is class?"A class is a major taxonomic rank below the phylum (or division) and above the order."What is genus?"It consists of structurally or phylogenetically related species."What is species?"A group of organisms that can reproduce naturally with one another is known as species."What is order?"A taxonomic rank used in the classification of organisms and recognized by the nomenclature codes."Example: cat family, dog family.The correct sequential divisions in the system: Kingdom>Phylum or Division> Class> Order> Family>Genus> Species.
Hence, the correct option is C. Class.
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Why would DNA want to replicate?
Where is DNA stored in a Eukaryote?
Answer:
Explanation:
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
Answer for number 2:
nucleus
1: Cellular location of eukaryotic and prokaryotic DNA: Eukaryotic DNA is stored in a nucleus, whereas prokaryotic DNA is in the cytoplasm in the form of a nucleoid.
Since a protist reproduces asexually, the offspring can inherit the parent's mutation
A. False
B. True
Answer: B. True
Explanation:
The statement "Since a protist reproduces asexually, the offspring can inherit the parent's mutation" is true.
What is mutation?A mutation is changing or modification in the nucleic acid or DNA sequence of a person. This is a natural process that occurs due to mutagens.
One parent participates in asexual reproduction, which results in kids that are genetically identical to both the parent and each other. Two parents participate in sexual reproduction, which results in children with distinct genetic makeup.
In budding, organisms reproduce by severing new individuals from existing ones, creating organisms that are genetically identical to one another. Since identical children are born via sexual reproduction, the offspring will inherit the mutation. As a result, the answer to this question would be accurate.
Therefore, the statement is true.
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Why do we need blood?
Answer:
So that the heart can pump oxygen to our brain and to our entire body. Blood also has nutrients that helps our body keep on working. White blood cells help fight diseases and infections that are harmful to the human
Explanation:
Analyze the graphic above. What are the chemicals represents by the Y?
Answer:
Glucose and oxygen
Explanation:
Sunlight provides energy for chloroplasts to carry out photosynthesis. Photosynthesis uses carbon dioxide, water, and sunlight to create glucose and oxygen.
Glucose and oxygen are used to carry out aerobic respiration, most of which occurs in the mitochondria. This produces ATP, releasing carbon dioxide and water.
Answer:
i don't know please mark me brilliance
why do we feel pain in our hearts when we are sad
When people say words hurt is bc your feelings com from your brain and when you feel hurt or sad your brain makes the feeling physical. Like if you are depressed then your brain makes you sleep a lot so that you don't have to feel that pain during the day. Also, people can die from a broken hart bc it isn't your physical hart that is feeling everything it is actually your brain so it makes it self sabotage.
Need help! Do humans undergo respiration, photosynthesis, or both? Explain.!!!
Answer:
Humans undergo respiration, this is when we breath "respiration" is also connected to the Spanish word "respirar" which means "breath" only plant life can do photosynthesis.
Explanation:
How many stages are there in cellular respiration?
Answer: three stages
Explanation:
Answer: There are three stages
Explanation: Cellular respiration occurs in the cells of all living things, both autotrophs and heterotrophs. All of them burn glucose to form ATP. The reactions of cellular respiration can be grouped into three stages: glycolysis, the Krebs cycle (also called the citric acid cycle), and electron transport.
Which of the following processes describes a chemical change?
Answer: The breakdown of particles of food by acid in the stomach
Explanation: Just ‘cause I think it’s right
a.
What factor determines when a species is considered invasive?
It has positive environmental impacts.
b. It is environmentally damaging.
C. It spreads outside its native range.
d. It spreads within its natural range.
Please select the best answer from the choices provided
Ο Ο Ο Ο
C
D
Answer:
B : It is environmentally damaging on Edg 2021
Answer: The answer is b just took this test.
What is the function of mobile electron carriers?
Answer:
They are used to transport electron during metabolic reaction.