Which one among the following reason for the appearance of variations among the progeny formed by sexual reproduction?

Sexual reproduction involves two parents with different sets of characters

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The gene combinations are different in gametes which are fertilised

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Asexual reproduction involves two parents with different sets of characters

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Both A and B

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Solution

The correct option is C Both A and B
The process of sexual reproduction involved two parents, each contributing one gamete. As two parents with different sets of characters are involved, it results in variations. As there are two gametes, they virtually never have exactly the same combination of genes and hence, this results in the formation of different gene combination once fertilized.
Thus, the correct answer is option D.

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Similar questions

The offsprings formed by asexual reproduction method have greater similarity among themselves because:
(i) asexual reproduction involves only one parent
(ii) asexual reproduction involves two parents
(iii) asexual reproduction involves gametes
(iv) asexual reproduction does not involve gametes
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) (i) and (iv)

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because
(a) Sexual reproduction is a lengthy process
(b) Gametes of parents have qualitatively different genetic composition
(c) The genetic material comes from parents of two different species
(d) Greater amounts of DNA is involved in sexual reproduction

Question 4
Offsprings which are formed by the asexual reproduction methods have greater similarity among themselves because

(i) Asexual reproduction involves only one parent
(ii) Asexual reproduction does not involve two gametes
(iii) Asexual reproduction occurs before sexual reproduction
(iv) Asexual reproduction occurs after sexual reproduction

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)

Question 4
Offsprings which are formed by the asexual reproduction methods have greater similarity among themselves because

Q. New individuals formed by asexual method of reproduction have greater similarity among themselves because:
(i) Asexual reproduction involves only one parent.
(ii) Asexual reproduction does not involve gametes.
(iii) Asexual reproduction occurs before sexual reproduction.
(iv) Asexual reproduction occurs after sexual reproduction.

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