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If a colourblind man marries a woman who...

If a colourblind man marries a woman who is homozygous for normal colour vision, the probability of their son being colourblind is

A

0.75

B

1

C

0

D

0.5

Text Solution

Verified by Experts

The correct Answer is:
c
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MODERN PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATION-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS (MCQs):)
  1. Phenotype of an organism is the result of

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  2. Which of the following most appropriately describes haemophilia?

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  3. A tall true breeding garden pea plant is crossed with a dwarf true bre...

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  4. Pick out the correct statement (I) Haemophilia is a sex-linked reces...

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  5. Which one of the following generates new genetic combinations leading ...

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  6. the mechanism that causes a gene to move from one linkage group to a...

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  7. A true breeding plant is

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  8. If a colourblind man marries a woman who is homozygous for normal colo...

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  9. In a colour-blind man marries a woman who is parental-type offspring w...

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  10. Thalassemia and sickle-cell anaemia are caused due to a problem in glo...

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  11. The genotypes of a husband and wife are I^(A)I^(B) and I^(A)i. Among t...

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  12. A disease caused by an autosomal primary non-disjunction is

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  13. Among the following characters, which one was not considered by Mendel...

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  14. Which one from those given below is the period of Mendel's hybridisat...

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  15. Select the correct match

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  16. Which of the following pairs is wrongly matched?

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  17. Select the correct statement:

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  18. A woman has an X-linked condition on one of her X chromosomes . This c...

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  19. According to Hugo de Vries, the mechanism of evolution is

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  20. Genetic disorder due to trisomy of chromosome 21 in humans is :

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