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A true breeding plant producing red flow...

A true breeding plant producing red flowrs is crossed with a pure plant producing white flowers . Allele for red colour of flower is dominant . After selfing the plants of first filial generation , the proportion of plants producing white flowers in the progeny would be :

A

`3//4`

B

`1//4`

C

`1//3`

D

`1//2`

Text Solution

Verified by Experts

The correct Answer is:
B
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USHA PUBLICATION-HEREDITY & VARIATION -EXERCISE
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  2. In garden pea , yellow colour of cotyledons is dominant over green and...

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  3. A true breeding plant producing red flowrs is crossed with a pure plan...

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  4. Test cross is a cross between :

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  5. The phenotypic ratio in the F2 generation of dihybrid cross is :

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  6. Grain colour in wheat is determined by three pairs of polygene . Follo...

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  7. Which of the following genes show the heterozygous condition ?

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  8. A dihybrid for qualitative trait is crossed with homozygous recessive ...

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  9. Which of the following is best suited for codominance ?

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  10. When a dihybrid cross is fit into a punnett square with 16 boxes , the...

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  11. In guinea pigs , black short hair ( BBSS ) is dominant over white long...

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  12. A pure tall and a pure dwarf plant were crossed to produced offsprings...

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  13. If AAbb xx aaBB , then phenotypic ratio of its progeny will be :

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  14. The experimental plant material used by Mendel was :

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  15. In pea plants , yellow seeds are dominant to green . If a heterozygous...

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  16. In a given plant , red colour ( R ) of fruits is dominant over white f...

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  17. Which of the following characters is not among the seven characters co...

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  18. When a tall plant with round seeds ( TTRR ) crossed with a dwarf plant...

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  19. When a cross is conducted between black feathered hen and a white feat...

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  20. A plant of F1 - generation has genotype ‘AABbCC’ . On selfing of this ...

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