Both genetic and environmental factors contribute to variation in phenotypes of individuals within a population. Match the appropriate definition with each of the terms that relate to phenotypic variance. 1. Variance due to the interplay among alleles at multiple loci. ___
2. Sum of all genetic and non-genetic factors that affect expression of a trait within a population. ___
3. Variance resulting from the mean effects of single alleles. ___
4. Variance due to differential effects of non-genetic factors on specific genotypes. ___
5. Variance due to the interaction between two alleles at a single locus. ___
6. Variance in response to external, nongenetic factors. ___
7. Variance in the alleles among individuals within a population. ____
environmental variance phenotypic variance genetic variance dominance genetic variance additive genetic variance genic interaction variance genetic-environmental interaction variance



Answer :

Environmental elements like diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all affect which genes in an animal are expressed, which in turn affects the animal's phenotype.

There are two categories of factors that are known to affect phenotypic diversity in a population: genetic and environmental. Sometimes a gene's DNA sequence or level of activity is altered by the environment. Either of these outcomes can alter the proteins that come from a gene, which in turn affects traits. The nucleotide sequence of a gene can be altered by some hazardous environmental factors. For instance, UV radiation has the ability to damage DNA strands.

Learn more about the nucleotide sequence

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