Question

Need answers fast

A mule , a liger cannot reproduce
Why ??
Explain plse

Answer 1

Mules have an odd number of chromosomes. Horses have 64, donkeys have 62 ( or vice versa, I don't remember), when they mate the offspring has the average, 63. Since 63 is odd, when meiosis tries to take place, there is no even split of an odd numberand the alignment cannot happen properly so there is no fertility. My genetics professor also told us that around 15% of mules are actually fertile by random chance, although I cannot elaborate on why.
a species is a group of animals that can breed together to produce fertile offspring. 
Ligers, Mules, they aren't a species, they are a combination of two species, hence the name hybrid, they can't reproduce because, the two different species have two different numbers of chromosomes. Species can reproduce within their own species, because each individual within the species has the same number of chromosomes. 
The hybrids can't reproduce because the sex cells would never be fertilized, as their chromosomes would be wrong. The hybrids would never occur in nature, and they were created by man, I don't know how they accomplished this, but, anyway, thats why the hybrids can't reproduce. 
Not the best scientific answer, but I did my best. :D
Hope it helps......plz mark brainliest.......