When two genes are situated very close to each other in a chromosome

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4.Principles of Inheritance and Variation

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When two genes are situated very close to each other in a chromosome

A

The percentage of crossing over between them is very high

B

Hardly any cross over are detected

C

No crossing over can take place between them

D

Only double cross overs can take place between them

(AIIMS-1980)

Solution

(b) Frequency of crossing over is proportional to the distance of gene.

Standard 12

Biology

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