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7:29
Donkey
2n = 62 chromosomes
Mule
LTE 90
Horse
2n = 64 chromosomes
a. Based on what you have learned about fertilization of
gametes, how many chromosomes does a mule have?
Identify the number of chromosomes the mule receives
from each parent. (4 points)


Sagot :

Certainly! Let's go through the problem step-by-step:

We are given the number of chromosomes for a donkey and a horse and need to determine the number of chromosomes for a mule, which is the offspring of a donkey and a horse.

### Donkey Chromosomes:
- A donkey has a diploid (2n) number of chromosomes equal to 62.
- The haploid number (n) is obtained by dividing by 2, since the haploid number represents the number of chromosomes in a gamete (sperm or egg).

[tex]\[ n \text{ (Donkey) } = \frac{62}{2} = 31 \][/tex]

So, a donkey contributes 31 chromosomes through its gamete.

### Horse Chromosomes:
- A horse has a diploid (2n) number of chromosomes equal to 64.
- Similarly, the haploid number (n) is obtained by dividing by 2.

[tex]\[ n \text{ (Horse) } = \frac{64}{2} = 32 \][/tex]

So, a horse contributes 32 chromosomes through its gamete.

### Mule Chromosomes:
- A mule is the result of the fertilization between a donkey's gamete and a horse's gamete.
- Therefore, the mule receives one haploid set of chromosomes from the donkey and one haploid set from the horse.

[tex]\[ \text{Total chromosomes in a mule} = \text{chromosomes from donkey} + \text{chromosomes from horse} \][/tex]

[tex]\[ \text{Total chromosomes in a mule} = 31 + 32 = 63 \][/tex]

So, to summarize:
- A mule receives 31 chromosomes from its donkey parent.
- A mule receives 32 chromosomes from its horse parent.
- The total number of chromosomes a mule has is 63.

This detailed breakdown gives a clear understanding of how the chromosomes from each parent contribute to the mule.
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