Heterosis (hybrid vigor) is desirable in vege | vedclass

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Question

(C) Heterosis or hybrid vigor refers to the phenomenon where the progeny of a cross between two genetically diverse parents exhibits superior traits c

Vedclass · Accepted Answer

Vegetative propagation helps in maintaining the hybrid vigor.

Vedclass · Answer

(C) Heterosis or hybrid vigor refers to the phenomenon where the progeny of a cross between two genetically diverse parents exhibits superior traits compared to the parents.In sexually reproducing plants,this vigor is lost in subsequent generations due to segregation and recombination during meiosis.However,in vegetatively propagated plants,the hybrid genotype is maintained indefinitely through asexual reproduction (cloning).Therefore,once a superior hybrid is developed,it can be propagated vegetatively to preserve its heterosis without the risk of losing it through sexual recombination.

Column-$I$	Column-$II$
$(a)$ Mustard	$(1)$ Pusa Sawani
$(b)$ Flat bean	$(2)$ Pusa Sadabahar
$(c)$ Okra	$(3)$ Pusa Gaurav
	$(4)$ Pusa Sem $2$

Heterosis (hybrid vigor) is desirable in vegetatively propagated plants because:

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Which of the following is not used for crop improvement?

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Match the columns:
Column-$I$ Column-$II$
$(a)$ Mustard $(1)$ Pusa Sawani
$(b)$ Flat bean $(2)$ Pusa Sadabahar
$(c)$ Okra $(3)$ Pusa Gaurav
$(4)$ Pusa Sem $2$

The entire collection of plants or seeds having all the diverse alleles for all genes in a given crop is called:

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