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Questions and Answers
What is the main characteristic of polygenic inheritance?
What is the main characteristic of polygenic inheritance?
- Each gene has a significant effect on the phenotype
- Multiple genes have an additive effect on a single trait (correct)
- Only two genes contribute to the expression of the phenotype
- Epistasis is involved, where an allele masks the effect of another allele
What is the effect of a single polygene on the phenotype?
What is the effect of a single polygene on the phenotype?
- It has a significant and dominant effect
- It masks the effect of other alleles
- It has no effect on the phenotype
- It has a slight and cumulative effect (correct)
What is the relationship between alleles in polygenic inheritance?
What is the relationship between alleles in polygenic inheritance?
- There is complete dominance of one allele over the other
- One allele is completely recessive to the other
- There is no dominance, and alleles have a cumulative effect (correct)
- Epistasis occurs, where one allele masks the effect of another
What is the pattern of variation in polygenic inheritance?
What is the pattern of variation in polygenic inheritance?
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Which of the following is an example of polygenic inheritance?
Which of the following is an example of polygenic inheritance?
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How many genes are responsible for the phenotype of height?
How many genes are responsible for the phenotype of height?
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