Answer: GIFT transfers gametes (ovum and sperm); ZIFT transfers the zygote.
- A GIFT transfers a developing embryo directly; ZIFT instead transfers a fertilized zygote
- B GIFT transfers gametes (ovum and sperm); ZIFT transfers the zygote
- C GIFT transfers a developing blastocyst stage; ZIFT instead transfers an early morula stage
- D GIFT transfers sperm cells alone; ZIFT instead transfers an already fertilised egg cell
Correct answer: B. GIFT transfers gametes (ovum and sperm); ZIFT transfers the zygote
Explanation: GIFT (Gamete Intrafallopian Transfer) transfers unfertilised gametes (ovum and sperm) into the fallopian tube for in vivo fertilisation, whereas ZIFT transfers the already fertilised zygote into the fallopian tube.
Contraceptive methods span a spectrum from temporary/natural to permanent/surgical; condoms stand out as the only method offering STI protection alongside contraception.
Concept context
Understand reproductive health, family planning, contraception methods, STIs, population control, and assisted reproductive technologies.