Question

"The effect of each allele is addictive in
polygenic Inheritance"
substantiate the statement​

Answer 1

Answer:

The additive effect means that each contributing allele produces one unit of color. In an example using two parents, heterozygous for each of the melanin-producing genes (AaBbCc x AaBbCc), it is possible to see how the additive effects and combinations of alleles results in all the possible genotypes.

Answer 2

Numerous alleles found in various loci are responsible for the inheritance of numerous phenotypic characteristics and traits found in plants and animals, including height, skin pigmentation, hair and eye colour, and the production of milk and eggs. The term "polygenic inheritance" describes this.

• When multiple independent genes have an additive or comparable effect on a single quantitative characteristic, this is known as polygenic inheritance.
• A polygene is a gene that works in concert with other genes to slightly influence phenotypes.
• The impact of a single gene is too modest, making it challenging to identify.
• The effects of several genes are equivalent.
• Every allele has an additive or cumulative effect.
• Multiple alleles, such as the ABO blood group system, which is regulated by three alleles, are different from polygenic inheritance in that multiple alleles occurs when three or more alleles are present in the same locus and any two of those alleles are present in an organism.
• There is no epistasis, or masking of an allele's expression at a separate locus, involved.
• Instead, there are contributing and non-contributing alleles, which are referred to as active or null alleles, respectively. There is neither linkage nor dominance.

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