GATE XL 2018 Paper 1 — page 35

Questions 103–105 of 125. Imported answers require review unless explicitly marked reviewed.

Which ONE of the following statements is NOT part of the classical Darwinian theory of evolution by natural selection?

Your answerChoose one option.

A trait which is constantly used will get inherited by next generation.

Phenotype variations exist among the individuals of a population of a species

Individuals that best fit into a given environment are more likely to survive

Each population can randomly acquire a distinct and separate suite of variations.

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A population of rabits was determined to have a birth rate of 200 and mortality rate of 50 per year. If the initial population size is 400 individuals, after 2 years of non-infered breeding the final population size will be ____________.

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In a population which is in Hardy-Weinberg equilibrium, the frequency of occurrence of a disorder caused by recessive allele (q) is 1 in 100. The frequency of heterozygotes in the population will be ____________. (Give the answer to three decimal places).

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2018 · Paper 1

Question 18

Question 19

Question 20