Multiple Choice
A protein disk that attaches two chromatids to each other in a chromosome is called a:
4
views
3. Extensions to Mendelian Inheritance
Overview of interacting Genes
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
A gene that affects the expression of a second gene is an example of:
A
incomplete dominance
B
epistasis
C
codominance
D
pleiotropy
Verified step by step guidance1
Step 1: Understand the definitions of the given genetic terms to distinguish between them.
Step 2: Recall that incomplete dominance refers to a situation where the heterozygote phenotype is intermediate between the two homozygotes.
Step 3: Recognize that codominance occurs when both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits simultaneously.
Step 4: Know that pleiotropy describes a single gene influencing multiple, seemingly unrelated phenotypic traits.
Step 5: Identify that epistasis is when one gene affects or masks the expression of a second gene, which matches the description in the problem.
7:56mWatch next
Master Interacting Genes Overview with a bite sized video explanation from Kylia
Start learningRelated Videos
Related Practice
Overview of interacting Genes practice set
Problem sets built by lead tutorsExpert video explanations