The horse (Equus caballus) has 32 pairs of chromosomes, whereas the donkey (Equus asinus) has 31 pairs of chromosomes. How many chromosomes would be expected in the somatic tissue of a mule, which is a hybrid of these two animals?

The answer to your question is 63 chromosomes, the mule is a hybrid.

Explanation:

The horse has 64 chromosomes and the donkey has 62 chromosomes, the mules is a hybrid cross of these 2 animals and has 63 chromosomes.

Mule is a cross of a male donkey and a female horse and due to is has an impar number of chromosomes it can not reproduce.

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