Module: | Embryo, Seed, Fruit & Apomixis
Q94: Consider the following statements regarding the terminological distinctions of asexual reproductive mechanisms:
1. Parthenogenesis in botany refers specifically to the development of an embryo directly from an unfertilized egg cell.
2. Apomixis is a broader reproductive term encompassing any asexual mechanism that mimics sexual reproduction by producing seeds without fertilization.
3. Parthenocarpy is completely identical to parthenogenesis, as both processes strictly result in the formation of viable, haploid seeds.
Which of the above statements is/are correct?
2. Apomixis is a broader reproductive term encompassing any asexual mechanism that mimics sexual reproduction by producing seeds without fertilization.
3. Parthenocarpy is completely identical to parthenogenesis, as both processes strictly result in the formation of viable, haploid seeds.
Which of the above statements is/are correct?
✅ Correct Answer: A
The correct option is A. Statements 1 and 2 are correct, but Statement 3 represents a fundamental terminological error.
Understanding precise definitions is critical in plant reproduction.
Parthenogenesis is a specific cellular event where the haploid female gamete (the egg cell) autonomously develops into a haploid embryo without fusing with a male gamete.
Apomixis is the umbrella term for producing entire seeds without fertilization (which can include parthenogenesis, or other pathways like apospory where diploid somatic cells form the embryo). Statement 3 is entirely false because parthenocarpy has absolutely nothing to do with seed formation.
Parthenocarpy is the development of the ovary into a fruit without fertilization.
Because no fertilization occurs and no embryo bypass mechanism (like apomixis) is triggered, parthenocarpic fruits (like commercial bananas) are strictly seedless.
Understanding precise definitions is critical in plant reproduction.
Parthenogenesis is a specific cellular event where the haploid female gamete (the egg cell) autonomously develops into a haploid embryo without fusing with a male gamete.
Apomixis is the umbrella term for producing entire seeds without fertilization (which can include parthenogenesis, or other pathways like apospory where diploid somatic cells form the embryo). Statement 3 is entirely false because parthenocarpy has absolutely nothing to do with seed formation.
Parthenocarpy is the development of the ovary into a fruit without fertilization.
Because no fertilization occurs and no embryo bypass mechanism (like apomixis) is triggered, parthenocarpic fruits (like commercial bananas) are strictly seedless.