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Phenotype and Genotype

If the ratio ...

Question

If the ratio of each phenotype of the seeds of pea plants in the F₂ generation is 9 : 3 : 3 : 1, it is known as :
(a) tetrahybrid ratio
(b) monohybrid ratio
(c) dihybrid ratio
(d) trihybrid ratio

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Solution

(c) dihybrid ratio
The ratio 9: 3: 3: 1 is known as the dihybrid ratio.

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Q. Which combination of statements is correct?
i. Mendel called as factors.
ii. Mendel is known as the father of genetics.
iii. In dihybrid crosses of Mendel's experiment four traits were taken into consideration.
iv. Mendel's experiment with monohybrid cross led to the formulation of the law of segregation.
v. The ratio of each phenotype of the seeds in F_2 generation in Mendel's dihybrid cross experiment was

9 : 3 : 3 : 1.

This is known as the dihybrid ratio.

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The phenotypic dihybrid ratio in F2 generation is ________.

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