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If both the parents are carriers for ...

If both the parents are carriers for thalassemia which is an autosomal recessive disorder what are fthe chances of pregnancy resulting in an affected child

A

`50%`

B

`25%`

C

`100%`

D

No chance

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH INSTITUTE-PRINCIPLES OF INHERITANCE AND VARIATION-Assignment (SECTION-C) Previous Years Questions
  1. A human female with turner's syndrome

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  2. In a population of 1000 individuals 360 belong to genototype AA ,480 ...

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  3. If both the parents are carriers for thalassemia which is an autoso...

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  4. The incorrect statement with regard to Haemophilia is

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  5. If two persons with 'AB' blood group marry and have suffieciently larg...

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  6. Which Mendelian idea is depicted by a cross in which the F1 generation...

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  7. which of the following statements is not true of two genes that sh...

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  8. "F"(2) generation in Mendelian cross showed that both genotypic and p...

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  9. A normal visioned man whose father was colour blind, marries a woman w...

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  10. A test cross is carried out:

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  11. Represented below is the inheritance pattern of certain type of traits...

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  12. Which one of the following is a wrong statement regarding mutations

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  13. Which one of the following conditions correctly describes the manner o...

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  14. When two unrelated individuals or lines are crossed, the performance o...

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  15. Test cross in plants or in Drosophila involves crossing:

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  16. ABO blood groups in human beings are controlled by the gene I. The gen...

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  17. Which one of the following cannot be explained on the basis of Mendel'...

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  18. The genotype of a plant showing the dominat phenotype can be det...

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  19. Select the correct statements from the ones given below with respect t...

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  20. A cross in which an organism showing a dominant phentype is crossed wi...

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