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A couple has only A and O blood group ch...

A couple has only A and O blood group children in 3:1 ratio if father's blood group is A, mother's blood group is

A

O

B

A

C

A or O

D

B

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-PRINCIPLES OF INHERITANCE AND VARIATION-EXERCISE-I
  1. Each of the progeny have 25% chance of their blood group being O/A/B/A...

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  2. A,AB and B blood groups are formed in 1:2:1 ratio by

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  3. A couple has only A and O blood group children in 3:1 ratio if father'...

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  4. Genotype of A-group fatehr of O-group child would be

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  5. An O-group child cannot have parents of blood groups.

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  6. A gene incluencing many traits is

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  7. Source of mendelian recombinations is

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  8. Sickle cell anaemia is an example of

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  9. In a cross of four O'clock plants in the progeny half pink flower plan...

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  10. In pisum sativum pleiotropic factor influences

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  11. If a plant is heterozygous tall and produced tall as well as dwarf in ...

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  12. Which of the following depicts phenotypic ratio of dihybrid cross?

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  13. Independent assorment of Mendel was under in framing

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  14. In Medelism, linkage was not observed due to

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  15. The percentage of ab gametes produced by AaBb parent will be

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  16. In a dihybrid cross the ratio of pure double dominants and pure double...

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  17. Number of kinds of genotypes in F(2) generation of mendel's dihybrid c...

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  18. Number of kinds of phenotypes in F(2) generation of mendel's dihybrid ...

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  19. Number of kinds of phenotypes in F(2) generation of mendel's dihybrid ...

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  20. When true breeding pea plant with yellow cotyledons are round seeds is...

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