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If both parents are carriers for thaless...

If both parents are carriers for thalessemia, which is an autosomal recessive disorder, what are the chances for pregnancy resulting in an affected child?

A

0.25

B

1

C

no chance

D

0.5

Text Solution

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The correct Answer is:
A
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TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. X-chromosomes or X-body was first observed by

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  2. In a hardy-Weinberg population, if gene has only two alleles A and A, ...

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  3. If both parents are carriers for thalessemia, which is an autosomal re...

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  4. which mendelian idea is depicted by a cross in which the F1 generation...

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  5. The incorrect statement with regard to haemophilia is

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  6. Which of the following statements is not true of two genes that show 5...

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  7. A man whose father was colour blind marries a woman who has a colour b...

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  8. In a population of 1000 individuals 360 belong to genotype AA, 480 to ...

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  9. A human female with turner's syndrome

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  10. Fruit colour in squash is an example of

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  11. How many pairs of contrasting characters in pea plants were studied by...

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  12. The exhange of one part of a chromosome to the other part of another ...

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  13. Multiple alleles are present

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  14. An abnormal human baby with XXX sex chromosomes was born due to

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  15. Alleles are:

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  16. A gene showing codominance has

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  17. The term "linkage" was coined by

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  18. Select the wrong statement

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  19. In the following human pedigree,the filled symbols represents the affe...

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  20. A colour blind man marries a woman with normal sight who has no histor...

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