A mule gets 32 horse chromosomes from mom and 31 donkey chromosomes from dad for a total of 63 chromosomes. (A horse has 64 chromosomes and a donkey has 62).
How many chromosomes do mules have in their gametes?
The horse has 64 chromosomes (32 pairs), and the donkey has 62 (31 pairs). When they are mated, the mule receives 63 chromosomes (32 from the horse and 31 from the donkey). During meiosis, the chromosomes are not in pairs, and, as their number is halved, the sex cells usually end up without a complete set.
How can a mule have 64 chromosomes?
Mules result from the breeding of a male donkey with a female horse. Donkeys have 62 chromosomes, horses have 64, and mules have 63. In a process known as nuclear transfer, they inserted the mule DNA into a horse egg cell that contained no genetic material.
What is a female mule called?
Sex: Male is a ‘horse mule’ (also known as a ‘john’ or ‘jack’). Female is a ‘mare mule‘ (also known as a ‘molly’). Young: A ‘colt’ (male) or ‘filly’ (female).
What does Hinny mean?
: a hybrid between a stallion and a female donkey — compare mule.
Are hinnies sterile?
Most hinnies (female donkey×male horse) and mules (female horse×male donkey) are sterile with few reports of equine fertile hybrids. The main cause of this sterility is thought to be a meiotic block to spermatogenesis and oogenesis.
Why do horses mate with donkeys?
Horses and donkeys mate to produce mules, which are sterile (most of the time – there are occasional exceptions), so they do not violate that particular species definition.