Question

In which of the following mammals estrous cycle is absent ?
A) Rabbit
B) Horse
C) Cow
D) Monkey

Answer 1

Answer:Option D- Monkey ✔✔

Explanation:

Answer 2

Answer:

D) Monkey is the right answer.

Explanation:

• Estrous cycle is absent in Monkey from the following mammals.
• All the mammals have a oestrous cycle except for primates like apes, humans and monkeys.
• The primates are the ones whose females do not have a oestrous cycle but they have a menstrual cycle.
• The examples of primates are gorillas, apes, monkeys, baboons, chimpanzees, etc.
• The menstrual cycle in primates takes place every month of the year.
• While in the mammals oestrous cycle takes place only a fixed number of times during the year.
• Therefore, as Rabbit, Horse and Cow have oestrous cycle and monkey been a primate has menstrual cycle, the correct answer is D)Monkey.