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In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants could you expect in $\mathrm{F}_1$-generation.
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$50: 50$
Yellow seeds are dominant is green (Y). So, a heterozygous yellow seeded plant will have the genotype of $(\mathrm{Y}, \mathrm{y})$ and a green seeded plant will have genotype (yy). When these plants are crossed, the $\mathrm{F}_1$-generation will have the ratio of yellow : green as 50 : 50 .
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