What determines an individual\'s phenotype for a polygenic multifactorial trait?

Question

What determines an individual's phenotype for a polygenic multifactorial trait? 1. A single gene 2. Multiple genes and the environment 3. Multiple genes but no influence from the environment 4. The environment alone What determines an individual's phenotype for a polygenic multifactorial trait? 1. A single gene 2. Multiple genes and the environment 3. Multiple genes but no influence from the environment 4. The environment alone 1. A single gene 2. Multiple genes and the environment 3. Multiple genes but no influence from the environment 4. The environment alone

Explanation / Answer

Ans. Polygenic trait is a phenotype/ trait contributed through interactions between two or more genes.

A multifactorial trait is a phenotype arising due to interactions between two or more genes as well influences of environmental factors.

Therefore, the phenotype for polygenic multifactorial trait is determined by both multiples genes and environment.

So, correct option is- 2. Multiple genes and the environment.

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