Q. 4
A person has to perform crosses for the purpose of studying inheritance of a few traits / characters. What should be the criteria for selecting the organisms?
Answer :
The criterion for selecting the organisms is true breeding. A true breeding line is one that, having undergone continuous self-pollination, shows the stable trait inheritance and expression for several generations.
For example Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits.Some of the contrasting traits selected were smooth or wrinkled seeds, yellow or green seeds, tall or dwarf plants etc.
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