Biology
Grade-9
Easy
Question
What are polygenic traits?
- Traits that are controlled by only gene.
- Traits that are not controlled by any gene.
- Traits that are controlled by multiple genes.
- Traits that are controlled by two genes.
Hint:
A trait that is influenced by two or more genes, such as height or skin tone, is referred to as a polygenic trait.
The correct answer is: Traits that are not controlled by any gene.
- A trait referred to as polygenic is one that is regulated by several non-allelic genes.
- Polygenes are the name for these genes.
- They are a collection of genes that, when activated, express themselves collectively.
- Each of these has a cumulative effect that results in the characteristic.
- However, it can be challenging to differentiate the impact of a single gene, particularly when a polygenic feature incorporates multiple genes.
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