Question

find the phenotypic and genotypic ratio.

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Answer 1

Answer:

ANSWER

If the heterozygous yellow seeds Yy are crossed with heterozygous yellow seeds Yy,

Parents: Yy x Yy

Gametes: Y, y x Y, y

Offspring: YY, Yy, Yy and yy

YY (yellow), Yy (yellow), Yy (yellow) and yy (green)

From the Punnett square, the phenotypic ratio is 3 (yellow): 1 (green).

The genotypic ratio is 1: 2: 1 (YY- 1, Yy-2 and yy-1).

Answer 2

Explanation:

What is a phenotypic ratio example?

Write the amount of homozygous dominant (AA) and heterozygous (Aa) squares as one phenotypic group. Count the amount of homozygous recessive (aa) squares as another group. Write the result as a ratio of the two groups. A count of 3 from one group and 1 from the other would give a ratio of 3:1.

What is the genotype ratio?

The genotypic ratio shows the number of times a characteristic of an organism will be seen in the offspring when genes for certain traits are crossed. ... The genotypic ratio for this cross is written 1:2:1. In animals and plants, each gene has 2 alleles or variations, one from each parent.

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