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The distance between the genes is measur...

The distance between the genes is measuredby

A

angstrom

B

map unit

C

Dobson unit

D

millimetre

Text Solution

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The correct Answer is:
B
The distance between genes is measured by map unit 1 %. Crossing over between two linked genes is known as 1 map unit or centi Morgan (cM). 100 % crossing over is termed as Morgan (M) and 10 % crossing over as deci Morgan (dm).
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NCERT FINGERTIPS-PRINCIPLES OF INHERITANCE & VARIATION-Principles Of Inheritance & Variation
  1. What is true about the crossing over between linked genes ?

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  2. Chromosome maps/genetic maps were first prepared by

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  3. The distance between the genes is measuredby

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

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

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

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

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

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

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

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  11. In polygenic inheritance

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

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

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

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

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  16. A pleiotropic gene

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  17. The gene disorder phenylketonuria is an example for

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  18. Genes with multiple phenotypic effects are known as

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  19. When a single gene influences more then one trait it is called

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  20. Pleiotropic genes have

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