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On crossing two similar hybrids, the per...

On crossing two similar hybrids, the percentage of recessive is

A

0.25

B

1

C

0.5

D

0.75

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The correct Answer is:
A
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Assertion (A) : Crossing of F_(1) hybrid with the recessive parent is known as test cross. Reason ( R) : Test cross helps to determine the unknown genotype by crossing it with the recessive parent.

The frequency of two alleles in a gene pool is 0.19 (A) and 0.8 (a) . Assume that the population is in Hardy-Weinberg equilibrium and (a) Calculate the percentage of heterozygous individuals in the population. (b) Calculate the percentage of homozygous recessive in the population .

The frequency of two alleles in a gene pool is 0.19 ( A) and 0.81 ( a) . Assume that the population is in Hardy-Weinberg equilibrium and (a) Calculate the percentage of heterozygous individuals in the population. (b) Calculate the percentage of homozygous recessive in the population .

The back cross of F_(1) hybrid with the recessive parent is called :

The pair having similar hybrid geometry is :

ARIHANT NEET-MENDELIAN BASIS OF INHERITANCE -Chapter Exercise A Taking it together (Assorted Questions of the Chapter for Advanced Level Practice )
  1. Self-incompatibility in tobacco is an example of

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  2. In case of incomplete dominance, F(2) generation has

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  3. On crossing two similar hybrids, the percentage of recessive is

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  4. If fur colour in mice is caused by the following genes :B =blacek and ...

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  5. Assume that in mice, B = black fur, b = brown fur . If a heterozygous ...

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  6. If Mendel had chosen more than seven traits in his plants, he might ha...

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  7. What is the major advantage of using a Punnett square?

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  8. What would be the colour of flowers in F(1) progeny as a result of cro...

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  9. In Mendel's garden peas, the tall allele (D) is dominant over the dwar...

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  10. From a single ear of corn, a farmer planted 200 kernals which produced...

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  11. Why was Mendel fairly certain that he had a pure- bred variety when he...

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  12. If an organism with tht genotype Ww is crossed with a Ww organism, wha...

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  13. If genes are not linked, a genotype of PpRr can produce………….. Differen...

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  14. Mendel was the first biologist

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  15. Mendels law of segregation states that

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  16. Who coined the term gene

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  17. One reason for Mendel's success was that he

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  18. What would be the parent's genotypes if both were heterozygous for flo...

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  19. What phenotypes are possible from the cross, between round seeded plan...

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  20. Which statement describes the work of Gregor Mendel?

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