| In one of his experiments with pea plants Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation, \[{{\mathbf{F}}_{\mathbf{1}}}\] only tall plants appear. |
| (a) What happens to the traits of the dwarf plants in this case? |
| (b) When the \[{{\mathbf{F}}_{\mathbf{1}}}\] generation plants were self-fertilised, he observed that in the plants of second generation, \[{{\mathbf{F}}_{2}}\] both tall plants and dwarf plants were present. Why it happened? Explain briefly. |
Answer:
(a) The dwarf traits of the plants is not expressed in the presence of the dominant tall traits. (b) In \[{{F}_{2}}\] generation all tall and dwarf traits are present in the ratio of 3:1, this showed that both tallness and dwarfness traits were present in \[{{F}_{1}}\] generation but only tallness trait appeared being dominant trait.
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