The gene which decided the appearance of an organism even in the presence of an alternative gene is called as

Dominant gene

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Recessive gene

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Both A and B

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None of the above

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Solution

The correct option is B Dominant gene
Dominant alleles are a pair of alleles which can express itself whether in a homozygous or heterozygous state. For example, the factor for tallness in hybrid and homozygous states or Tt and TT.

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An allele which decides the appearance of an organism only in the presence of another identical allele is called a recessive allele.

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