Question

What do you mean by phenotypic ratio and genotypic
ratio of Mendel's monolybrid experiment?
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Answer 1

Answer:

F

1

generation produced by monohybrid crossing --> Tt

Test cross: Tt x tt

Gametes: T, t t

Offspring: Tt, tt

Phenotypic ratio: 1 : 1

Genotypic ratio: 1 : 1

So, option A is correct here.

Answer 2

Answer:

The ratio is 3:1, if you cross a pea plant's seed which is green or round and another seed which is yellow or wrinkled.

Explanation:

See, a monohybrid cross is basically a one where one character is crossed with another one character. Here the character concerned can be green seed and yellow seed of which the former is a domonant character, or a round seed with a wrinkled one, of which the former is again dominant. Now the ratio is 3:1, where the dominant character appears 3 times than the recessive one. Of these 3 types, 1 is homozygous dominant, 2 are heterozygous dominant