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A man is affected with brachydactyly, an...

A man is affected with brachydactyly, an autosomal dominant trait that cause shortening of several fingers. What is the risk that the man's first child will have brachydactyly ?

A

0.25

B

0.5

C

0.75

D

1

Text Solution

Verified by Experts

The correct Answer is:
D
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ARIHANT NEET-HUMAN GENETICS-Chapter Exercises A Taking it together (Assorted Questions of the Chapter for Advanced level Practice )
  1. The gene for haemophilia is located on the chromosome of humans.It is ...

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  2. A woman with cstic fibrosis, an autosomal recondition, marries her fi...

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  3. A man is affected with brachydactyly, an autosomal dominant trait that...

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  4. A man and woman who both have 'Bb' genotype at a locus will produce wh...

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  5. Mr phillips is colourblind. What is the probability of his male child ...

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  6. How can a female be colour blind ?

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  7. If a normal woman marries a colour blind man :

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  8. What are all the chances of colour blind daughter and sons being born ...

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  9. Which one of the following conditions in humans is correctly matched ...

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  10. A man of blood group 'A' marries a woman of blood group 'B' ,both of t...

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  11. A mother with B blood group has two children, one with A blood group a...

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  12. A man known to be victim of haemophilia marries a normal woman whose f...

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  13. A couple got their first daughter quite normal , but the mother was un...

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  14. If a boy's father has haemophilia and his mother has one gene for haem...

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  15. Mary' s father has haemophilia and her husband is also haemophilic. W...

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  16. What are the chances that sons of a man with a rare X-linked disorder...

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  17. One of the following is a mismatch

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  18. Parents are colourblind. What is the phenotype of grandsons in f2-gene...

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  19. A woman with straight hair marries a man with curly hair and who is kn...

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  20. In man ,which of the following genotypes and phenotypes may be the cor...

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