10th Class Science Heredity and Evolution

  • question_answer 76)
      Give reasons for the appearance of new combination of characters in the progeny in question 45.

    Answer:

                      All the . plants had round and yellow seeds. Cron between of generation, they, they give rise to new combinations in  generation with round-yellow, round-green, wrinkled yellow and wrinkled green in the ratio of 9 : 3 : 3 : 1. It indicates that the chances for the pea seeds to be round or wrinkled do not depend on their chances to be yellow or green. Each pair of alleles is independent of the other pairs. This is called the principle of independent assortment (3rd law of Mendelian  gametes).


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