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Depending upon the distance between any ...

Depending upon the distance between any two genes which is inversely proportional to the strength of linkage, cross overs will vary from

A

`50-100 %`

B

`0-50 %`

C

`75-100 %`

D

`100-150 %`

Text Solution

Verified by Experts

The correct Answer is:
B
The physical distance between two genes determines both the strength of the linkage and the frequency of the crossing over between two genes The strength of the linkage increases with the closeness of the two genes. On the other hand the frequency of crossing over increases with the increase in the physical distance between the two genes.
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NCERT FINGERTIPS ENGLISH-PRINCIPLES OF INHERITANCE & VARIATION-Principles Of Inheritance & Variation
  1. Genes located very close to one another on same chromosome tend to be ...

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  2. True-breeding red-eyed Drosophila flies with plain thoraxes were cross...

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  3. Depending upon the distance between any two genes which is inversely p...

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  4. Refer to the given figure of cross A and cross B and select the correc...

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  5. What is true about the crossing over between linked genes ?

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  6. Chromosome maps/genetic maps were first prepared by

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  7. The distance between the genes is measured by

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  8. If map distance between genes P and Q is 4 units, between P and R is 1...

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  9. Given diagram shows a pair of homologous chromosomes during meiosis ...

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  10. Which of the following is suitable for experiment on linkage ?

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  11. Mendel law of independent assortment does not hold true for the genes ...

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  12. If linkage was known at the time of Mendel then which of the following...

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  13. In maize, coloured endosprem (C) is dominant over colourless (c) , an...

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  14. Which of the following are reasons for Mendel's success ? (i) Usage ...

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  15. In polygenic inheritance

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  16. In a cross between negro and albino skin colour of humans showing pol...

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  17. What proportion of the offsprings obtained from cross AABBCC xx AaBbCc...

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  18. Refer the given statements and select the correct option (i) Percent...

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  19. A man having the genotype EEFfGgHH can produce P number of genetically...

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  20. A pleiotropic gene: 1) controls a trait only in combination with ano...

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