Question

Which two of the following statements are incorrect regarding in vitro fertilization?
(i) In this method, ova from the wife/donor female and sperms from the husband/donor male are induced to form zygote in the uterus.
(ii) If the embryo is having $2$ blastomeres, it is transferred into the uterus.
(iii) If the embryo is with more than $8$ blastomeres, it is transferred into the uterus.
(iv) The baby thus produced is called test tube baby.

• A. (iii) and (iv)
• B. (i) and (ii)
• C. (ii) and (iii)
• D. (i) and (iv)

Answer 1

The correct option is B (i) and (ii)

In-vitro fertilization technique essentially involves the fusion of ovum and sperm outside the body of the female. The zygote is allowed to develop in-vitro and embryo with 6-8 blastomere is transferred into the uterus. the baby thus developed is called test tube baby.

(i) In IVF, ova from the wife/donor female and sperm from the husband/donor male are induced to form zygote in the test-tube or in-vitro.

(ii) Embryo with 2 blastomeres is not transferred into the uterus. It is allowed to develop.

(iii) If the embryo has achieved 6-8 blastomeres, it is tranferred into the uterus for implantation.

(iv) The baby thus developed is called the test tube baby.

Hence, the correct answer is '(i) and (ii)'.