Question 15
Which of the following statements is not true with respect to variation?

(a) All variations in a species have an equal chance of survival.
(b) Change in genetic composition results in variation.
(c) Selection of variants by environmental factors forms the basis of evolutionary processes.
(d) Variation is minimum in asexual reproduction.

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Solution

(a) All variations in a species have an equal chance of survival.

Depending on the nature of variations, different individuals would have different kinds of advantages.

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Q. Question 15
Which of the following statements is not true with respect to variation?

(a) All variations in a species have equal chance of survival.
(b) Change in genetic composition results in variation.
(c) Selection of variants by environmental factors forms the basis of evolutionary processes.
(d) Variation is minimum in asexual reproduction.

Which of the following statement is incorrect with respect to variations?
(a) all variations in a species have an equal chance of survival
(b) change in genetic composition results in variations
(c) selection of variations by environmental factors torus the basis of the evolutionary process
(d) variations are the minimum in asexual reproduction

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. All the variation in a species do not have equal chances of Survival why?

Q. Statement 1: All the variations in a species have equal chances of survival.

Statement 2: In asexually reproducing organisms minimum variations are present.

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Genetic Variations

Standard X Biology

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(a) All variations in a species have an equal chance of survival. Depending on the nature of variations, different individuals would have different kinds of advantages.

(a) All variations in a species have an equal chance of survival.

Depending on the nature of variations, different individuals would have different kinds of advantages.