AP®︎ Biology: Topic 6.5 Practice Test
Prepare for your quiz, test, or the AP exam with focused practice questions on Topic 6.5 of AP Biology – Regulation of Gene Expression.
Questions List
Topic 6.5
Question 1 Easy
This question tests the following: IST-2.A.1
What is the role of regulatory sequences in gene expression?
What You’re Being Tested On:
Explore the learning objectives taken directly from the College Board’s AP® Biology Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.
Topic 6.5: Regulation of Gene Expression
Learning Objective: 6.5.A
Describe the types of interactions that regulate gene expression.
Essential Knowledge: 6.5.A.1
Regulatory sequences are stretches of DNA that interact with regulatory proteins to control transcription. Some genes are constitutively expressed, and others are inducible.
Essential Knowledge: 6.5.A.2
Epigenetic changes can affect gene expression through reversible modifications of DNA or histones.
Essential Knowledge: 6.5.A.3
The phenotype of a cell or an organism is determined by the combination of genes that are expressed and the levels at which they are expressed. i. Observable cell differentiation results from the expression of genes for tissue-specific proteins. ii. Induction of transcription factors during development results in sequential gene expression. iii. The function and amount of gene products determine the phenotype of organisms.
Learning Objective: 6.5.B
Explain how the location of regulatory sequences relates to their function.
Essential Knowledge: 6.5.B.1
Both prokaryotes and eukaryotes have groups of genes that are coordinately regulated. i. Prokaryotes regulate operons in an inducible or repressible system. ii. In eukaryotes, groups of genes may be influenced by the same transcription factors to coordinately regulate expression.
