Question

Genes which code for a pair of contrasting traits are known as______

Answer 1

Genes which code for a pair of contrasting traits are known as allelomorph.

It is nowadays commonly known as alleles (allele). It is called the variant form of a given gene.

Many a times, different alleles may result in different observable phenotypic characteristics.

Different pigmentation or colour variation is one of them.

Answer 2

Answer:  

'Genes which code for a pair of 'contrasting traits' are known as an 'allele'.  

Explanation:

The allele is known as each of two or two more different genes which are made up by 'mutation' and are 'found at the same place' as a chromosome. The allele does DNA coding which occupies in a given 'locus on a chromosome'.  

We know an 'allele' is a 'variant form of a gene'. The allele is very important because allele can be introduced as dominant and, recessive, to each other.