Assertion: Cattle breeds can be improved by superovulation and embryo transplantation.

Reason: Superovulation in high milk-yielding cows is induced by hormonal injection.

• If both Assertion and Reason are true and Reason is the correct explanation of Assertion

• If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

• If Assertion is true but Reason is false

• If both Assertion and Reason are false.

B.

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

Embryo transfer is the process of placing embryos into the uterine cavity during an IVF procedure.

For superovulation donor cows of particularly fine pedigree are treated with hormones (mainly FSH and LH) to increase the number of eggs released at ovulation - multiple ovulation (MO). The cows are artificially inseminated using semen from a proven bull.

After 6-7 days the embryos are collected non-surgically, and then implanted into recipient cows whose oestrous cycle is at the correct receptive stage - usually as te result of hormonal manipulation