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6 April, 23:03

In peas, yellow seed color (Y) is dominant to green seed color (y). A homozygous green pea plant is crossed with a heterozygous yellow pea plant. What is the predicted phenotypic ratio of the offspring? A. 50 percent yellow, 50 percent green B. 50 percent Yy, 50 percent yy C. 100 percent yellow, 0 percent green D. 100 percent Yy, 0 percent yy

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  1. 6 April, 23:42
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    It is letter B. 50 percent Yy, 50 percent yy. This experiment is very similar to Mendel's pea plants. He has yellow seeds which are dominant to green seeds. When the true-breeding green - seed-producing plant was crossed to the heterozygous yellow-seed-producing plant, the percentage of offspring produces green seeds was 50%
  2. 7 April, 00:58
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    The predicted phenotypic ratio of the offspring in a cross of homozygous green pea and heterozygous yellow pea plant is A. 50 percent yellow, 50 percent green. The possible genotypes (and their phenotypes) are: dominant homozygous YY (yellow seeds), heterozygous Yy (yellow seeds), and recessive homozygous yy (green seeds). In a cross of plants with genotypes yy and Yy, the offspring will be: 2 Yy and 2 yy. In other words, there will be 50% of heterozygous peas with yellow seeds and 50% of recessive homozygous peas with green seeds.
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