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
sergij07 [2.7K]
3 years ago
13

Use the mechanisms of meiosis to explain why most mules are sterile.

Biology
1 answer:
Tema [17]3 years ago
4 0

Answer:

3. An even number of chromosomes are required for synapsis during prophase I and proper pairing during metaphase

Explanation:

Mules are hybrids of a cross between a female horse and a male donkey. Horses contain 64 chromosomes while donkeys contain 63 chromosomes in their somatic cells respectively. This means that they each produce 32 and 31 chromosomes respectively during meiosis. A mule, hence, contains 32+31= 63 chromosomes in their somatic cells.

This chromosome number in mules are uneven for meiosis to occur because meiotic division requires that an even number of homologous chromosomes pair together in a process called SYNAPSIS during prophase I of meiosis I. This is impossible in a mule because of the uneven number of chromosomes in its cells.

Also, during metaphase of meiosis, the homologous chromosomes need to be properly aligned at the equator for separation to occur. This is also impossible in a mule considering the number of chromosomes that don't add up.

Due to this reason of unevenness in the number of chromosomes present in a mule, meiosis will not occur and if meiosis (gamete formation) does not occur, reproduction cannot take place. Therefore, the mule is a sterile species i.e. cannot produce offsprings via sexual reproduction.

You might be interested in
The part of an atom that would be found outside the nucleus is the _______. A. electron B. positron C. neutron D. proton
Goshia [24]
The answer would be A, an electron is found outside of the nucleus.
3 0
3 years ago
Read 2 more answers
20 Points!!!!!! William wants to create a cell model using ingredients in his kitchen. He uses plastic wrap to represent a vacuo
Veseljchak [2.6K]
A piece of broccoli because the top part is rough 

7 0
3 years ago
Read 2 more answers
Part A
marishachu [46]

Answer:

Higher temperatures will increase respiration, so the amount of carbon dioxide that plants release could increase.

Explanation:

This is the sample answer

7 0
3 years ago
How does a cells surface area change compared to its volume when the cell grows
EastWind [94]

Answer:

As a cell grows bigger, its internal volume enlarges and the cell membrane expands. Unfortunately, the volume increases more rapidly than does the surface area, and so the relative amount of surface area available to pass materials to a unit volume of the cell steadily decreases.

5 0
2 years ago
4. Which statement is true? a.Weight depends on mass.
ycow [4]

the answer is a weigh depends on mass

6 0
3 years ago
Other questions:
  • Identify the cerebellum, cervical plexus, brachial plexus, posterior rootlets, and posterior median sulcus.
    7·1 answer
  • Describe how the doctor used her skeletomusclar system in this situation
    13·1 answer
  • Explain how an unbalanced translocation occurs and how it affects humans.
    13·2 answers
  • Sam is next in line for an interview. He seems to be nervous and tense, and he is sweating profusely. Which subsystem of his ner
    10·2 answers
  • Why can’t the evolutionary relationships between certain species be explained thoroughly?
    5·1 answer
  • How is DNA a piece of evidence for evolution
    8·1 answer
  • Why was Darwin’s Theory of Evolution accepted when others were not?
    8·1 answer
  • Which of the following is a problem that resulted from the Green Revolution?
    5·1 answer
  • 7. What are the all of the possible genotypes for the following human blood
    13·1 answer
  • Sarah the Cheetah ran a 100 meter dash in 5.95 seconds at the San Diego Zoo, setting a new world record for mammals. What was Sa
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!