The following blanks can be filled only by numbers.
1. Gregor Mendel conducted hybridization experiments on garden peas for (P) years.
2. Mendel selected (Q) true-breeding pea plant varieties
3. In a human population, there are (R) alleles for ABO blood group.
4. In Drosophila, genes for white eye and yellow body show (S)% recombination.
The correct arrangement is

Question

Infinity Learn · Accepted Answer

Gregor Mendel, conducted hybridisation experiments on garden peas for $$P-$$ seven years (1856-1863).Mendel selected $$Q-$$ $$14$$ $$true-breeding$$ pea plant varieties, as pairs which were similar except for one character with contrasting traits.In a human population, there are $$R-three$$ alleles for ABO blood group.In Drosophila, genes for white eye and yellow body show only $$S-1.3$$ per cent recombination.Therefore, S< R< P< Q

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