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The dominant epistasis ratio is...

The dominant epistasis ratio is

A

`9:3:3:1`

B

`12:3:1`

C

` 9:3:4`

D

` 9: 6:1`

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The correct Answer is:
B
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ICSE-PRINCIPLES OF INHERITANCE AND VARIATION-COMPETITION CORNER (OBJECTIVE TYPE QUESTIONS (MULTIPLE CHOICE QUESTIONS))
  1. In garden pea, yellow colour of cotyledons is dominant over green and ...

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  2. A true breeding plant producing red flowers is crossed with a pure pla...

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  3. The dominant epistasis ratio is

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  4. Which of the following represents a test cross?

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  5. In which one of the following, complementary gene interaction ratio of...

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  6. A character, which is expressed in a hybrid is called

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  7. The gene, which controls many characters is called

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

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  9. XO chromosomal abnormality in humans causes

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  10. Which of the following is not related to sex chromosome X or Y?

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  11. The genotype of a plant showing the dominant phenotype can be determin...

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  12. Which one of the following cannot be explained on the basis of Mendel'...

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  13. Select the correct statement from the ones given below with respect to...

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  14. Inheritance of flower colour is an example of incomplete dominance, wh...

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  15. The graphical representation to calculate the probability of all possi...

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  16. The F2 genotypic ratio of monohybrid cross is

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  17. Heterozygous tall plant is crossed with a homozygous dwarf plant then ...

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  18. To determine heterozygosity of a cross, one has to perform a) Backcros...

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  19. Testcross is a cross between a) Hybrid x Dominant parent b) Hybrid x ...

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  20. Which of the following is not a Mendelian disorder?

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