Question

Mule is a product of hybridisation between which two among the following?
i. Male Horse A. Female Horse
ii. Male Donkey B. Female Donkey
iii. Male Deer C. Female Deer

• A. i and B
• B. ii and C
• C. iii and A
• D. ii and A

Answer 1

The correct option is D ii and A

Female Horse $\times$ Male Donkey
2n = 64 2n = 62
n = 32 n = 31
$\Downarrow$
Mule
2n = 63
This uneven number of chromosomes result in the sterility in mules.