Sexual Reproduction in Humans Quiz
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5 questions, one answer each
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1. What is the key difference between the nucleus of a gamete and the nucleus of a zygote in terms of chromosome number?
- A. The gamete nucleus is haploid and the zygote nucleus is diploid
- B. The gamete nucleus is diploid and the zygote nucleus is haploid
- C. Both gamete and zygote nuclei are haploid
- D. Both gamete and zygote nuclei are diploid
2. Which statement best describes fertilisation in sexual reproduction?
- A. The division of a single gamete nucleus into two daughter cells
- B. The fusion of the nuclei of two gametes to form a zygote
- C. The separation of chromosomes during meiosis
- D. The replication of DNA in a single cell
3. Why does sexual reproduction in humans produce genetically different offspring?
- A. Because only one parent contributes genetic material
- B. Because mutations always occur during fertilisation
- C. Because genetic material from two different parents is combined during the fusion of gamete nuclei
- D. Because the zygote nucleus undergoes immediate cell division
4. Which of the following is an advantage of sexual reproduction in a wild population but a disadvantage in crop production?
- A. Production of genetically identical offspring
- B. Production of genetically varied offspring that can adapt to environmental changes
- C. Rapid reproduction with minimal energy expenditure
- D. Guaranteed expression of desirable traits in all offspring
5. A student claims that a haploid zygote fuses with another haploid gamete to produce a diploid organism. Evaluate this statement.
- A. This is correct; zygotes are always haploid
- B. This is incorrect; a zygote is diploid, not haploid, and does not fuse with gametes
- C. This is correct; the fusion produces variation in offspring
- D. This is incorrect; gametes are diploid, not haploid