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A horse has a diploid number (2n) of 64 and a donkey has 2n = 62. The hybrid of these two species, ...

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A horse has a diploid number (2n) of 64 and a donkey has 2n = 62. The hybrid of these two species, ...

A horse has a diploid number (2n) of 64 and a donkey has 2n = 62. The hybrid of these two species, mules, have 2n = 63 and are sterile. Why are mules sterile?
A) Mules cannot physically mate with each other.
B) Mules cannot physically mate with horses and donkeys.
C) One chromosome is unpaired and fails to divide properly during meiosis.
D) Mules are not true hybrids.
E) Horses are not able to form new species.

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Biology: Life on Earth

Edition: 10^th

Authors: Audesirk, Byers

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