Question 1

Which of the following best describes a genome in a cell?

Accepted Answer

All the DNA in a cell

Question 2

In prokaryotes, the genome typically consists of how many DNA molecules?

Accepted Answer

One circular DNA molecule

Question 3

Before a cell divides, what must happen to its DNA?

Accepted Answer

It must be copied or replicated

Question 4

Why is it important for the two copies of DNA to separate before cell division?

Accepted Answer

So that each daughter cell ends up with a complete genome

Question 5

What are chromosomes?

Accepted Answer

Structures where DNA molecules are packaged

Question 6

Each eukaryotic chromosome consists of:

Accepted Answer

One very long linear DNA molecule associated with many proteins

Question 7

What is the role of proteins associated with DNA in chromosomes?

Accepted Answer

They help control the activity of the genes

Question 8

What is chromatin?

Accepted Answer

The entire complex of DNA and proteins that is the building material of chromosomes

Question 9

Which of the following best explains why DNA must be replicated before cell division?

Accepted Answer

To ensure each daughter cell receives a complete set of genetic instructions

Question 10

If a mutation prevents the separation of replicated DNA during cell division, what is the most likely outcome?

Accepted Answer

Daughter cells may not receive a complete genome

Question 11

Which of the following statements about eukaryotic chromosomes is correct?

Accepted Answer

They are composed of one very long linear DNA molecule and many associated proteins

Question 12

Which process is directly responsible for the accurate distribution of genetic material to daughter cells?

Accepted Answer

DNA replication followed by chromosome separation

Question 13

Which of the following best describes the relationship between chromatin and chromosomes?

Accepted Answer

Chromatin is the material that makes up chromosomes

Question 14

A scientist isolates a structure composed of DNA and proteins from a eukaryotic cell. What has she most likely isolated?

Accepted Answer

Chromatin

Question 15

Which of the following equations best represents the process of DNA replication?

Accepted Answer

$$\mathrm{DNA}_{	ext{parent}} ightarrow 2\, \mathrm{DNA}_{	ext{daughter}}$$

Cellular Organization of Genetic Material: Genome, Chromosomes, and Chromatin

Study Guide - Practice Questions