The factors which represent the contrasting pain of characters are called

Dominant and recessive

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Alleles

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Homologous pairs

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Determinants

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Solution

The correct option is B Alleles

In the living organisms, characters are present in the form of pairs. Every character is under the control of a gene. So genes are present in pairs on two chromosomes at same locus. In a pair of genes, both genes are alternative forms with one another. It is called allele. These alleles may be similar (TT or tt) or contrasting (Tt).
So, the correct option is ‘Allele’.

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Similar questions

Two factors responsible for the contrasting pairs of a character in Mendelian crosses are called_________.

Gregor Mendel's first law of genetics states " Of a pair of contrasted characters, only one can be represent in a gamete by its internal 'factor'.

(a) Give the modern name for this 'factor'.

(b) State where these factors are found in gametes.

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