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National 5 Biology Reproduction Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the main purpose of sexual reproduction in living organisms?✔✔To increase genetic variation in offspring
What are gametes in humans?✔✔Reproductive cells, specifically sperm in males and eggs in females
Where does fertilization typically occur in humans?✔✔In the fallopian tube
What is the term used to describe the fusion of a male and female gamete?✔✔Fertilization
What is the role of the placenta during pregnancy?✔✔To exchange nutrients and waste products between the mother and the developing fetus
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What type of cell division produces gametes?✔✔Meiosis
How does meiosis differ from mitosis?✔✔Meiosis produces four non-identical gametes, while mitosis produces two identical cells
What is the chromosome number in human gametes?✔✔23 chromosomes
What is a zygote?✔✔A fertilized egg cell formed from the fusion of sperm and egg
What is the term for the period during which an embryo develops inside the uterus?✔✔Gestation
What is the role of testosterone in males?✔✔To stimulate the development of male reproductive organs and secondary sexual characteristics
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