Q. In vitro fertilisation is a technique that involves transfer of which one of the following into the fallopian tube?
A) Zygote only
B) Embryo only, upto 8 cell stage
C) Either zygote or early embryo upto 8 cell stage
D) Embryo of 32 cell stage
Explanation
[Solution from source] In ZIFT (zygote intra-fallopian transfer), the zygote or an early embryo of up to 8 blastomeres is placed in the fallopian tube. Embryos with more than 8 blastomeres are placed in the uterus instead (IUT), so the 32-cell option is wrong. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.