A horse has 64 chromosomes and a donkey has 62. Mules result from crossing a horse and a donkey. State which of the following is incorrect?

Question

A horse has 64 chromosomes and a donkey has 62. Mules result from crossing a horse and a donkey. State which of the following is incorrect? (A) Mules can have either 64, 63 or 62 chromosomes (B) Mules are infertile (C) Mules have well-defined gender (male/female) (D) Mules have 63 chromosomes

Tardigrade Admin · Accepted Answer

Mules are a hybrid of two species, i.e. a female horse and a male donkey. So, they end up with an odd number of chromosomes. A horse has 64 chromosomes and a donkey has 62. A mule inherits 63 chromosomes. An even number of chromosome is needed to divide into pairs and reproduce.

Q. A horse has $64$ chromosomes and a donkey has $62$ . Mules result from crossing a horse and a donkey. State which of the following is incorrect?

Mules can have either 64, 63 or 62 chromosomes

Mules are infertile

Mules have well-defined gender (male/female)

Mules have 63 chromosomes

Mules are a hybrid of two species, i.e. a female horse and a male donkey. So, they end up with an odd number of chromosomes. A horse has $64$ chromosomes and a donkey has $62$ . A mule inherits $63$ chromosomes. An even number of chromosome is needed to divide into pairs and reproduce.

Q. A horse has 64 chromosomes and a donkey has 62. Mules result from crossing a horse and a donkey. State which of the following is incorrect?