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Question
A red-flowered pea plant was crossed with the white-flowered plant. In F1 generation all plants were red. It confirms that white color is_________
A red-flowered pea plant was crossed with the white-flowered plant. In F1 generation all plants were red. It confirms that white color is_________
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Solution
The correct option is A Recessive character
A trait that fully manifests itself, in heterozygous condition, is referred to as dominant trait and the allele controlling it is known as a dominant allele. The trait that does not express itself in heterozygous condition or whose effect is masked by the presence of dominant trait is known as a recessive trait. According to the question, a cross between red flowered pea plant (RR) and white-flowered pea plant (rr) obtains all red-flowered plant in F1 generation which means that red colour is dominant over recessive white colour. It makes option A correct. Option B is incorrect as if the white colour was dominant characters, it would have expressed itself in F1 generation. Option C is incorrect as non-genetic expression are not carried from one generation to next.
A trait that fully manifests itself, in heterozygous condition, is referred to as dominant trait and the allele controlling it is known as a dominant allele. The trait that does not express itself in heterozygous condition or whose effect is masked by the presence of dominant trait is known as a recessive trait. According to the question, a cross between red flowered pea plant (RR) and white-flowered pea plant (rr) obtains all red-flowered plant in F1 generation which means that red colour is dominant over recessive white colour. It makes option A correct. Option B is incorrect as if the white colour was dominant characters, it would have expressed itself in F1 generation. Option C is incorrect as non-genetic expression are not carried from one generation to next.
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