Same chapter3 marksDifficulty: Medium
What is emasculation, and when is it necessary in plant breeding?
Sexual Reproduction in Flowering Plants
3 marksDifficulty: Medium
Define apomixis and parthenocarpy, and state the practical use of each.
Original Khojo Papers practice question — not from a past board paper.
Answer
Apomixis is the production of seed without fertilisation, so the offspring are genetically identical to the parent; it lets a hybrid be propagated through seed without losing its hybrid vigour. Parthenocarpy is the development of a fruit without fertilisation, so the fruit is seedless; it is used to produce seedless grapes, bananas and watermelons.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The two are often confused: one concerns the seed and the other the fruit.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
Describe the structure of a mature embryo sac and name the cells it contains.
Sexual Reproduction in Flowering Plants
Same chapter3 marksDifficulty: Medium
What is double fertilisation, and what does each fusion produce?
Sexual Reproduction in Flowering Plants
Same chapter3 marksDifficulty: Medium
What is pollen-pistil interaction, and what does it achieve?
Sexual Reproduction in Flowering Plants
Same subject3 marksDifficulty: Medium
Name four methods of contraception and state the principle of each.
Reproductive Health
Same subject3 marksDifficulty: Medium
Describe the structure and functions of the placenta.
Human Reproduction