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A colourblind man maries a woman, who is...

A colourblind man maries a woman, who is homozygous for normal colour vision, the probability of their son being colourblind is -

A

0

B

0.25

C

0.5

D

1

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CHETANA PUBLICATION-INHERITANCE AND VARIATION-Exercise
  1. If the genes are located in a chromosome as p-q-r-s-t, which of the fo...

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  2. Find the mis match pair :

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  3. A colourblind man maries a woman, who is homozygous for normal colour ...

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  4. Mendel performed experiment on .............

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  5. Which of the follwoing trait is dominant in Pisum sativum?

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  6. A cross between an individual with unkonwn genotype for a trait with r...

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  7. In dihybrid cross, F2 generation offsprings show four different phenot...

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  8. Emasculation is...........

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  9. When phenotypic and genotypic ratios are the same, then it is an examp...

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  10. A pea with yellow and round seeds is crossed with another pea plant wi...

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  11. When a single gene produces two effects and one of it is lethal then t...

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  12. When two genes control a single character and have cumulative effect t...

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  13. Genes located on the same locus but show different expression,

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  14. If the centromere is situated near the end of the chromosome, the chro...

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  15. ..................... chromosome appears 'V' shaped during anaphase.

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  16. Sex- linked genes are present on ................

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  17. Sex determination in human being is .............

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  18. Colour blindness is a .........

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  19. The sister chromatids that help together at ............

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  20. Which of the following is not X-linked disorder?

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