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Question

What is the difference between multiple alleles and polygenes?


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Solution

Multiple alleles:

Multiple alleles are the alleles present at loci with more than one allele in the population.

Polygenes:

Polygene inheritance is defined as a quantitative inheritance in which multiple independent genes have an additive or similar effect on a single quantitative trait.

Multiple allelesPolygenic
Definition: Multiple alleles affect the same trait because they are alternative forms of the same gene. Definition: Polygenes are members of a group of non-epistatic genes that interact additively to affect phenotypic characteristics.
DNA strands involved: Multiple allele inheritance is carried out on the same DNA strand. DNA strands involved: polygenic inheritance is carried out on multiple DNA strands.
Genes involved: Multiple alleles entail multiple variants of the same gene. Genes involved: polygenic features controlled by a set of non-allelic genes.
Environmental factors: Environmental factors have little effect on trait determination when several alleles are expressed. Environmental factors: In polygenic inheritance when environmental influences have a considerable impact on the determination of a characteristic.

Example:

  1. Multiple alleles are present on the same DNA strand obtained by a code constructing A-type proteins, B-type proteins, or no proteins.
  2. As a result, there is one gene but three alleles in blood type. A, B, AB, and O blood types are among the various phenotypes.
Example: Antibiotics are generated in numerous places of the DNA to combat bacteria and other infections, which is an example of polygenic inheritance.

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