CBSE 2026 · Region 3 · Set 2 · Q24 · 3 marks
Answer the following questions :(a)Explain the different ways by which apomictic seeds can be developed.(b)Mention one advantage of apomictic seeds for farmers.
Answer the following questions :
(a)
Explain the different ways by which apomictic seeds can be developed.
(b)
Mention one advantage of apomictic seeds for farmers.
Marking-scheme solution
(a)
• In some species (Asteraceae and grasses) the diploid egg cell is formed
without reduction division and develop into an embryo without fertilization
• Some of the nucellar cells surrounding the embryo sac starts dividing and
protrude into the embryo sac and develop into an embryo
(b)
In Apomictic seeds there will be no segregation of the hybrid characters in
the progeny plants so farmers can keep on using the hybrid seeds to raise new crop year after year/ If hybrid seeds are made apomictic the farmer need not to buy hybrid seeds every year hence, they are cost effective
Sexual Reproduction in Flowering PlantsApomixis and PolyembryonyUnderstandshort_answermedium
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CBSE Class 12 Biology past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.