Sexual Reproduction in Plants Quiz
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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 have the same number of chromosomes
- D. The zygote nucleus has twice as many chromosomes as the gamete nucleus, but they are arranged differently
2. Which statement best describes sexual reproduction in plants?
- A. It involves the fusion of two genetically identical nuclei to produce identical offspring
- B. It involves the fusion of two genetically different gamete nuclei to produce genetically different offspring
- C. It produces offspring with exactly half the genetic material of the parent plant
- D. It occurs when pollen from the same flower fertilises the ovule
3. During sexual reproduction in plants, what is the term for the process in which two gamete nuclei fuse together?
- A. Pollination
- B. Mitosis
- C. Fertilisation
- D. Germination
4. A farmer is deciding between growing genetically identical crop plants from asexual reproduction or sexually reproduced plants. Which statement correctly identifies an advantage of sexual reproduction for crop production?
- A. Sexual reproduction is faster and requires less effort than asexual reproduction
- B. Sexually reproduced plants show greater genetic variation, which can provide resistance to new diseases and changing environmental conditions
- C. Sexual reproduction produces identical offspring, ensuring consistent crop quality
- D. Sexually reproduced crops never require pesticides because of their genetic diversity
5. In a wild plant population, sexual reproduction produces genetically different offspring. Which of the following best explains why this genetic variation is advantageous to the population's survival?
- A. Identical offspring are more likely to compete with each other for resources
- B. Genetic variation increases the probability that some individuals possess traits allowing survival in changing environments or resistance to new pathogens, improving population resilience
- C. Genetic variation allows all plants in the population to reproduce faster
- D. Genetically different offspring require fewer nutrients than genetically identical offspring