1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kaylis [27]
3 years ago
8

why does the meiosis produce cells with only half the amount of DNA? How does this aid in the formation of a healthy zygote?

Biology
1 answer:
Andreyy893 years ago
7 0
Meiosis produces cells (germ cells or gametes) with only half the DNA, or chromosomes, as normal cells (somatic cells). This is called haploid or referred to as "n" number of chromosomes. Normal body cells have doubke that, called "2n," or diploid. For humans our n = 23, so germ cells (haploid) have only 23 chromosomes, while somatic (normal body) cells have "2n" or 46 chromosomes. It is important to only carry half the number of chromosomes or DNA (n), because it is going to combine with another half (n) when sperm meets egg during fertilization. This n + n = 2n restores the diploid number of chromosomes (DNA) in a zygote, the first cell of a future embryo, fetus, and new human being.
You might be interested in
Glycolysis is best defined as a catabolic reaction based upon the ________.
blagie [28]
One molecule of glucose breaks down into two molecules of pyruvate, which are then used to provide further energy in one of two ways.
Two pyruvate
3 0
3 years ago
Which layer of the skin supplies the skin with oxygen and nutrients
xxMikexx [17]
Reticular layer which is one of the layers of the dermis and the deeper layer which is the reticular layer supplies the skin with oxygen and nutrients
6 0
3 years ago
Read 2 more answers
1. The nucleic acids DNA and RNA carry genetic information and are made up of many . 2. Myoglobin is a protein that binds oxygen
OverLord2011 [107]

Answer:

1. Nucleotides

2. Amino acids

3. Amino acids

4. Glucose

Explanation:

All the above substance described are biomolecules. They are all polymers i.e. complex molecule bond together in a long repeating chain, made up of simpler subunits called monomers. The monomers of the different biomolecules outlined above are:

1. The nucleic acids, DNA and RNA carry genetic information and are made up of many NUCELEOTIDES. A nuceleotide is a chemical combination of a five carbon sugar (pentose), phosphate group and nitrogenous base. These nucleotides are arranged sequentially to form nucleic acids (RNA and DNA).

2. Myoglobin is a protein that binds oxygen molecules and is a polymer of AMINO ACIDS. Amino acids are the building blocks of proteins. They are arranged to form a 3D structure that determines the function of the protein.

3. Insulin is a protein hormone that regulates blood glucose levels and is a polymer of AMINO ACIDS. All proteins are made up of the amino acid but the protein's function is dependent on the 3D structure formed by the amino acid sequence.

4. Animals store energy in the form of glycogen, a carbohydrate made up of thousands of monosaccharide (GLUCOSE). Glycogen is a polysaccharide made up of many monosaccharide units. These units are glucose molecules that are multibranched to form the glycogen that stores mainly in the liver and muscles of animals.

3 0
3 years ago
Label the sequence of events for the evolution of the atmosphere in the correct order
Marizza181 [45]
The sequence of event for the evolution of the atmosphere: 1. meteorite bombardment 2. Volcanic Outgassing 3. Oceans Form 4. Banded Iron Formations Created 5. cyanobacteria evolve 6. Oxygen increases in atmosphere 7. Eukaryotes evolve
5 0
3 years ago
True/false:Meiosis only occurs in females
Allushta [10]
The answer is going to be false. hope that helped
8 0
3 years ago
Read 2 more answers
Other questions:
  • What happens when organisms populate a new area and are isolated geographically from other populations of the same species?
    6·1 answer
  • At which stage of respiration does the CO2 release take place?
    13·1 answer
  • Which is NOT true of animals?
    11·2 answers
  • In what type of cell prokaryotes or eukaryotes does the cell cycle occur​
    9·1 answer
  • Which of the following statements does not highlight a difference in eukaryotic and prokaryotic translation?
    10·1 answer
  • 1.5 (b) proteins quiz A useful model for enzyme action is the: the lock and key model. double helix model. ball and socket model
    9·1 answer
  • 'erms: DNA, budding, male and female, one parent, unique, spores, uniform, traits, egg, and
    6·1 answer
  • Patient A got IV fluid at the hospital that turned to be water. what would happen to the patient's blood cells.
    15·1 answer
  • Choose all the answers that apply.
    13·2 answers
  • Highly sensitive cells within the hypothalamus that react to changes in blood composition and cause the release of antidiuretic
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!