Read the following statements.
a) Genetic maps are used as starting point in the sequencing of whole genome.
b) Alfred sturtevant used the recombinant frequency between gene pairs for measuring the distance between genes and mapped their position on chromosome.
c) Tightly linked genes show high recombination and loosely linked genes show low recombination.
d) Genes of white eye and miniature wings in Drosophila showed 1.3% recombination.
e) Genes of white eye and yellow body in Drosophila showed 37.2% recombination.
f) When two genes are situated on same chromosomes, the proportion of parental gene combinations are higher than non parental type. This is due to linkage.
How many statements are correct?

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Six

Five

Four

Three

answer is D.

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Detailed Solution

Genetic maps are used as starting point in the sequencing of whole genome. Alfred sturtevant used the recombinant frequency between gene pairs for measuring the distance between genes and mapped their position on chromosome. Tightly linked genes show less recombination and loosely linked genes show high recombination.
Genes of white eye and miniature wings in Drosophila showed 37.2% recombination. Genes of white eye and yellow body in Drosophila showed 1.3% recombination. When two genes are situated on same chromosomes, the proportion of parental gene combinations are higher than non parental type. This is due to linkage.

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