Question

Define the following terms: -


▪ Gene
▪ Allele
▪ Multiple Allele
▪ Pleiotropic Gene
▪ Polygene.​

Answer 1

Gene:-

a gene is a sequence of nucleotides in DNA or RNA that codes for a molecule that has a function

Allele:-

one of two or more possible forms of a gene that are found at the same place on a chromosome

Polygene:-

a gene whose individual effect on a phenotype is too small to be observed, but which can act together with others to produce observable variation.

Answer 2

Answer:

1.a gene is a sequence of nucleotides in DNA or RNA that codes for a molecule that has a function.

Explanation:

2.An allele is a variant form of a given gene. Sometimes, the presence of different alleles of the same gene can result in different observable phenotypic traits, such as different pigmentation.

3.it is form of alleles in which the More than two alternative form of a gene in a population occupying the same locus on a chromosomes......

4.Pleiotropy occurs when one gene influences two or more seemingly unrelated phenotypic traits.

5.Polygenic traits are those traits that are controlled by more than one gene (poly- means many). The examples for polygenic traits are eyes colour, hair colour, human height, etc