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Grain colour in wheat is determined by t...

Grain colour in wheat is determined by three pairs of polygene . Following the corss AABBCC ( dark colour ) x aabbcc ( light colour ) , in `F_2` -generation , what proportion of the progeny is likely to resemble either parent ?

A

Half

B

Less than 5 percent

C

One third

D

None of these

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The correct Answer is:
B
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USHA PUBLICATION-HEREDITY & VARIATION -EXERCISE
  1. Test cross is a cross between :

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

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

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

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

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

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

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

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

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

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  11. The experimental plant material used by Mendel was :

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

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

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

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

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

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

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  18. In a monohybrid cross involving incomplete dominance , the phenotypic ...

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  19. How many different kinds of gametes will be produced by a plant having...

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  20. When tall and dwarf plants are crossed , from which cross 1 : 1 ratio ...

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