Within the species of dogs, we can see pups looking very different from each other. This is because of ...................

Sexual reproduction

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Genetic variation

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Both A and B

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Growth differences.

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Solution

The correct option is C
Both A and B

Animals which we see around us with differences in them are the result of genetic variation. Sexual reproduction involves fusion of haploid gametes which in turn is the source of genetic variations at DNA level. These variations produce morphological differences in the animals of the same species.

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Similar questions

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

Q. The offsprings formed as a result of sexual reproduction exhibit more variations because :
(a) sexual reproduction is lengthy process
(b) genetic material comes from two parents of different species
(c) genetic material comes from two parents of same species
(d) genetic material comes from many parents

Assertion (A): Differences in a population are created by genetic variations.

Reason (R): Driving factor for variation is the source of sexual reproduction and also asexual reproduction.

Q. Question 20
Offspring formed as a result of sexual reproduction exhibit more variations because

(a) sexual reproduction is a lengthy process
(b) genetic material comes from two parents of the same species
(c) genetic material comes from two parents of different species
(d) genetic material comes from many parents

Q. Assertion :Genetic variation shown by the plant Rauwolfia vomitoria growing in different Himalayan ranges is very important economically. Reason: The amount and variety of alkaloids present in this plant, change both between the Rauwolfia species and between the different strains of R. vomitoria.

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