Answer: A single sperm.
- A Multiple sperms
- B A single sperm
- C Sperm nucleus only
- D Sperm DNA extract
Correct answer: B. A single sperm
Explanation: ICSI (Intracytoplasmic Sperm Injection) involves injecting a single sperm directly into the cytoplasm of an ovum, used when sperm count or motility is very low.
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.