Question

Assertion (A): In MOET, hormones with progesterone-like activity are given to the cow for inducing superovulation.

Reason (R): The embryos at 4-6 cell stage are recovered and transferred to surrogate mothers.

• A. Both assertion and reason are true and reason is the correct explanation of assertion
• B. Both assertion and reason are true but reason is not the correct explanation of assertion
• C. The assertion is true but reason is false
• D. Both assertion and reason are false

Answer 1

The correct option is D Both assertion and reason are false

Multiple Ovulation Embryo Transfer Technology (MOET) is a part of controlled breeding experiments. These experiments are carried out to improve the quality of animals.

MOET includes the following steps:

The cow is administered with hormones having FSH-like activity to stimulate follicular maturation and superovulation (production of about 6-8 eggs instead of one egg per cycle is called super ovulation).

The super ovulated female is either mated with a superior bull or artificially inseminated (semen of superior male is injected into the reproductive tract of the cow).

The fertilised eggs at 8–32 celled stage (early embryos) are recovered non-surgically.

The early embryos collected are then transferred to surrogate mothers in which the further development of embryo takes place.

In the given question, assertion is false as hormones with FSH-like activity are given to cows but not progesterone-like activity.

FSH (follicle stimulating hormone) is secreted by the anterior pituitary and it helps in the growth and development of ovarian follicles. These follicles have the ovum/egg.

Progesterone hormone is needed to support and maintain a potential pregnancy.

Reason is also false as early embryos at 8-32 cell stage are transferred to surrogate mothers.

Hence, both assertion and reason are false.