alleryStart learning →Epistasis describes which kind of interaction between two genes?
AOne gene masks or interferes with the other
BTwo genes swap their alleles during meiosis
CTwo genes are always inherited as one unit
DOne gene copies the other gene's sequence
Answer & Solution
Correct answer: A. One gene masks or interferes with the other
1. In epistasis the interaction between genes is antagonistic.
2. One gene masks or interferes with the expression of another gene.
3. The word comes from Greek roots meaning standing upon, which captures one gene sitting over another.
4. Being inherited as one unit is linkage, which concerns position rather than expression.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 12 "Mendel's Experiments and Heredity", section 12.3 Laws of Inheritance_
Keep practising Mendel's Experiments and Heredity
Browse all Mendel's Experiments and Heredity questions for NCEA Level 2, or explore more Biology topics.
Related questions
Sort each clue by its dominance patternOrder the steps of crossing overKnock out the false allele claimsHow many genes contribute to eye colour in humans, at minimum?A single characteristic gives a phenotypic ratio whose parts total 16. What does that usuaIn shepherd's purse, seeds are ovoid only when both genes are homozygous recessive. What rTwo mice heterozygous at both the A and C genes are crossed. What phenotypic ratio of agouAgouti coat colour needs a dominant A allele, but pigment of any kind needs a dominant C a