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The ratio in a dihybrid test cross betwe...

The ratio in a dihybrid test cross between two individuals is given by :-

A

`9:3:3:1`

B

`1:1:1:1`

C

`1:2:2:4:1:2:1:2:1`

D

`3:1`

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The correct Answer is:
B
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ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-I (CONCEPTUAL QUESTIONS)
  1. Mendel's laws of inheritance are applicable on the plants which :-

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  2. A cross used to ascertian whether an individual is dominant homozy...

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  3. The ratio in a dihybrid test cross between two individuals is given by...

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  4. A woman with albinic father marries an albinic man. The proportion of ...

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  5. A cross between pure tall pea plant with green pods and dwarf pea plan...

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  6. Mendel's principle of segregation means that the germ cells always rec...

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  7. How many types of genetically different gametes will be produced by a ...

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  8. Two allelic genes are located on

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  9. The phenotypic ratio in a back cross between a trihybrid and homozygou...

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  10. Among the seven pairs of contrasting traits in pea plant as studied by...

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  11. Some of the dominant traits studied by Mendel were

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  12. The colour based contrasting traits in seven contrasting pairs, studie...

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  13. Mendel observed that all the F(1) progeny plants.

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  14. According to Mendel, "factors" or "genes"

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  15. The segregration of alleles is random process and so there is a chance...

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  16. The phenotype of any character will not be affected if the modified al...

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  17. Genes which code for a pair of contrasting traits are known as

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  18. According to the concept of dominance, the modified allele is equivale...

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  19. The recessive characters are -

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  20. In mirabilis & Antirrhinium plant the appearance of the pink hybrid (R...

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