Why did Mendel carry out an experiment
to study inheritance of two traits in
garden-pea?
What were his findings with respect
to inheritance of traits in F1 and F2
generation?
State the ratio obtained in the F2
generation in the above
above mentioned
experiment.
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1.
Mendel carried out crosses with two traits to see the interaction and basis of inheritance between them. ... He found out that the traits are independent of each other i.e. inheritance of one trait does not influence inheritance of other and thus gave law of independent assortment
2.
Mendel crossed pure lines of pea plants. Dominant traits, like purple flower colour, appeared in the first-generation hybrids (F1), whereas recessive traits, like white flower colour, were masked. However, recessive traits reappeared in second-generation (F2) pea plants in a ratio of 3:1 (dominant to recessive).
3.
The resulting F2 genotype ratios were 25 percent SS, 50 percent Ss and 25 percent ss, which can also be written as 1:2:1. Because of dominance, the phenotype, or visible trait, ratios were 75 percent smooth and 25 percent wrinkled, which can also be written as 3:1.
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