Unit Test

Question 1

Which base is found only in DNA?

Revolt · Accepted Answer

D: thymine

Question 2

Which carries the code for protein synthesis from the cell nucleus to the cytoplasm?

Revolt · Accepted Answer

D: mRNA

Question 3

Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in a mRNA strand, but during translation the mRNA strand still creates the same protein. Which type of mutation is responsible for the change in the mRNA base?

Revolt · Accepted Answer

A: silent

Question 4

What does DNA provide the code for?

Revolt · Accepted Answer

B: protein synthesis

Question 5

What purpose does the peptide bond serve in protein synthesis?

Revolt · Accepted Answer

A: It connects amino acids.

Question 6

Missense, nonsense, and silent mutations are examples of which type of mutation?

Revolt · Accepted Answer

A: substitution

Question 7

The structure of DNA resembles a twisted ladder. Which structural components form the rungs of the ladder?

Revolt · Accepted Answer

C: nitrogenous base pairs

Question 8

Which accurately describes the relationship between cancer risk and exposure to mutagens?

Revolt · Accepted Answer

B: Cancer risk increases when a person is exposed to mutagens because the risk of DNA mutations increases as well.

Question 9

What will happen if RNA polymerase fails to attach to the promoter?

Revolt · Accepted Answer

B: Transcription will not begin.

Question 10

Which statements describe the characteristics of an individual protein? Select two options. It is specific to one biochemical reaction.It increases the activation energy needed for a reaction.It can catalyze many different reactions.It increases the rate of a biochemical reaction.It slows down the rate of a biochemical reaction.

Revolt · Accepted Answer

A: It is specific to one biochemical reaction.; D: It increases the rate of a biochemical reaction.

Unit Test Answers

More from this Course

TRY EDGENUITY HACKS