Question

Embryo with more than 16 blastomere formed due to in vitro fertilization is transferred into
A. Cervix
B. Uterus
C. Fallopian tube
D. Fimbriae

Answer 1

IVF stands for Invitro-fertilization also known as the test-tube baby. This fertilization technique is performed for infertile couples. If one of the partners or both the partners produce gametes but fertilization fails to occur, in such cases, fertilization is carried out artificially in laboratories. In IVF, implantation occurs in the womb.

Complete answer: In IVF, ovary in the female is stimulated to produce several fertilizable oocytes (eggs). Then by injecting a syringe into the ovary, eggs or oocytes are collected. Similarly, by injecting syringes directly into seminiferous tubules or in vasa deferentia, male gametes or sperms are collected.
In an artificial medium providing sterile conditions, male and female gametes are allowed to fertilize in a petri-dish. After the fusion, the zygote will form and then it is incubated to form an embryo. Embryo with more than 16 blastomeres formed is transferred to the female uterus. Two or three embryos are transferred into the female Uterus. After 14 days, the gravida test is performed to confirm pregnancy.
So, the correct answer is option B.

Additional information: The uterus is the female reproductive organ. It is the region where implantation takes place. It is otherwise known as womb.

Note: The reasons for infertility are drugs, congenital disease, physical or immunological or even psychological factors. In IVF, embryo transfer is accomplished by two methods. One is ZIFT i.e. zygote intrafallopian transfer and another method is IUT i.e. intrauterine transfer. In ZIFT, the embryo is transferred into the fallopian tube and in IUT. the embryo is transferred directly into the uterus.