5.00 Points Possible | Due Wednesday 10/01/25 at 9:00 AM Which of the following statements best describes the concept of epistasis? O The interaction between genes in which one gene masks or interferes with the expression of another. O Multiple genes working together to control a single phenotype. O Genes expressed sequentially in a pathway, adding complexity and specificity to an organ. O Genes functioning in complementary or synergistic fashions, requiring simultaneous expression to affect a phenotype. This question was created or adapted by your instructor.
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Complementary gene interactions occur when a pair of genes work together to create phenotypes for a single trait. This is caused by dominant alleles from one heterozygous locus masking other alleles, normally resulting in only two phenotypes: Incorrect term: Correct term: Question 3 Epistasis occurs when the alleles from one gene mask the genotype of another gene's alleles, resulting in fewer than the expected four phenotype classes. Incorrect term: Correct term: QUESTION Genetic redundancy is when a pair of genes can work together and often only require multiple dominant alleles from either locus to create a single phenotype. Incorrect term: Correct term:
Sri K.
Epistasis is a trait that can mask or affect the expression of a second gene.
When can epistasis be inferred? When the wild-type allele of one gene masks the expression of a mutant allele on another gene and expresses its own phenotype. When the mutant allele of one gene masks the expression of a mutant allele on another gene and expresses its own phenotype. When a haplo-sufficient gene produces a non-functional protein and expresses its own phenotype. When the mutant allele of one gene is masked by a wild-type gene and expresses its own phenotype.
Adi S.
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