Question

Please describe three principles of Mendel.

Answer 1

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Mendel's inheritance principles========

1. Law of dominance:

When Mendel crossed a true-breeding red flowered plant with a true breeding white flowered one, the progeny was found to be red coloured.


2. Law of segregation:

Mendel demonstrated that a hybrid between two different varieties possesses both types of parental factors, which subsequently separate or segregate in the gametes. This is known as law of segregation. In contrast to the uniformity of the first generation hybrids, the second generation produced by self-fertilization of the F1 red flowered plants which consist of two different kinds of plants—red ones like the red grandparent and white ones like the white grandparent.



3. Law of independent assortment:

‘When two pairs of independent alleles enter into combination in the F2, they exhibit independent dominant effects. In the formation of gametes the law of segregation operates but the factors assort themselves independently at random and freely.



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