In one of his experiments with pea plant Mendel observed that when a tall pea plant was crossed with a dwarf pea plant , in the first generation F1 only tall plants appeared. (a) What happens to the trait of dwarf plant in this case? (b) When the F1 generation plants were self fertilized Mendel observed that in the plants of second generation F2 both tall & dwarf plants were present. Why did this happen explain briefly. (c) Calculate the phenotypic & genotypic ratios obtained in F2 generation with the help of punett square.
Added by Michael R.
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This is because the allele for tall plant (T) is dominant over the allele for dwarf plant (t). ** Show more…
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Mendel found that three traits in peas-height, flower color and pod shape-are determined by different genes, and that these genes assort independently. Suppose that tall plants with violet flowers and inflated pods are crossed to dwarf plants with white flowers and constricted pods, and that all the F1 plants are tall, with violet flowers and inflated pods. If these F1 plants are self-fertilized, what fraction of their offspring are expected to (a) show all three dominant phenotypes (b) be tall, with white flowers and constricted pods, (c) be heterozygous for all three genes, (d) have at least one dominant allele of each gene in the genotype?
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