Question 1 (1 point) Which statement(s) about the lac operon in E. coli is correct? O A) It is an example of transcriptional regulation B) An inducer binds to a repressor molecule and activates transcription OC) A corepressor binds to a repressor molecule and activates transcription D) Lactose binds directly to the operator and activates it O E) Both a) and b) are correct OF) Both c) and d) are incorrect Question 2 (1 point) Which of the following descriptions best fits the class of molecules known as nucleotides? O A) a nitrogen base and a phosphate group OB) a nitrogen base and a five carbon sugar only OC) a nitrogen base, a phosphate group, and a five carbon sugar D) a five carbon sugar, a phosphate group, and a purine E) a pyrimidine, a purine, and a six carbon sugar

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Answer these two multiple choice questions

Question 1 (1 point)
Which statement(s) about the lac operon in E. coli is correct?
O A) It is an example of transcriptional regulation
B) An inducer binds to a repressor molecule and activates transcription
OC) A corepressor binds to a repressor molecule and activates transcription
D) Lactose binds directly to the operator and activates it
O E) Both a) and b) are correct
OF) Both c) and d) are incorrect
Question 2 (1 point)
Which of the following descriptions best fits the class of molecules known as
nucleotides?
O A) a nitrogen base and a phosphate group
OB) a nitrogen base and a five carbon sugar only
OC) a nitrogen base, a phosphate group, and a five carbon sugar
D) a five carbon sugar, a phosphate group, and a purine
O E) a pyrimidine, a purine, and a six carbon sugar
Transcribed Image Text:Question 1 (1 point) Which statement(s) about the lac operon in E. coli is correct? O A) It is an example of transcriptional regulation B) An inducer binds to a repressor molecule and activates transcription OC) A corepressor binds to a repressor molecule and activates transcription D) Lactose binds directly to the operator and activates it O E) Both a) and b) are correct OF) Both c) and d) are incorrect Question 2 (1 point) Which of the following descriptions best fits the class of molecules known as nucleotides? O A) a nitrogen base and a phosphate group OB) a nitrogen base and a five carbon sugar only OC) a nitrogen base, a phosphate group, and a five carbon sugar D) a five carbon sugar, a phosphate group, and a purine O E) a pyrimidine, a purine, and a six carbon sugar
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