Q. 185.0( 3 Votes )
The phenomenon observed in some plants wherein parts of the sexual apparatus are used for forming embryos without fertilisation is called:
C. Vegetative propagation
D. Sexual reproduction.
Parthenocarpy is development of a fruit without prior fertilization. Hence the fruits are seedless.
Apomixis is development of a seeds without prior fertilization. It is observed in few flowering. Apomixis is a form of asexual reproduction that mimics sexual reproduction. Apomixis avoids the processes of meiosis and fertilization, leading to embryo development.
Vegetative propagation is type of asexual reproduction in a plant where new plant is formed with involvement of just one parent. The new plant is genetically identical to the parent.
Sexual reproduction – here new offspring is formed with involvement of two parents.
Therefore, the correct answer is option (b).
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(a) How are Parthenocarpic fruits produced by some plants and apomictic seeds by some others? Explain.
(b) When do farmers prefer using apomictic seeds?
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Are parthenocarpy and apomixis different phenomena? Discuss their benefits.
Hint: Yes, parthenocarpy and apomixis different phenomena. Parthenocarpy leads to development of seedless fruits. Apomixis leads to embryo development.
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