DNA Answers

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5

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Answers:
itself.:unzip
is where the DNA replication process takes place.:replication fork
are special molecules that help initiate and enhance the DNA replication process.:Enzymes
7

What are nucleobases?

A
harmful substances found in the environment
B
nitrogen molecules that create the DNA sequence
C
special and unique enzymes used in DNA replication
D
genetic information that is passed down to offspring
8

What are the four types of nucleobases in DNA?

A
cytosine
B
helicase
C
guanine
D
adenine
E
ligase
F
thymine
G
DNA polymerase
H
nuclease
10

Where are chromosomes that contain DNA found?

A
inside a person’s genes
B
on the outside of a gamete
C
in the nucleus of a cell
D
around the double helix structure
11

Which of the following statements accurately describes DNA replication?

A
DNA replication creates two new strands that assemble nucleotides differently.
B
DNA replication uses one strand to assemble nucleotides and another strand to assemble enzymes.
C
DNA replication builds many new strands of DNA that are simplified down to two primary strands.
D
DNA replication requires starting with two separate double helixes and paring them down to one strand.
13

In DNA replication, what is the leading strand?

A
the strand that is unzipped at the replication fork
B
the strand that assembles new nucleotides in a continuous fashion
C
the strand that does not assemble new nucleotides in a continuous fashion
D
the strand that waits for the DNA replication process to be finished
14

Why might DNA mutation occur?

A
if the same amount of DNA remains unchanged for too long
B
if there is a genetic code that tells the DNA to mutate
C
if DNA only receives information from one gamete
D
if there is a change in DNA that alters or affects the genetic code
18

In DNA replication, what is the lagging strand?

A
the strand that does not assemble new nucleotides in a continuous fashion
B
the strand that assembles new nucleotides in a continuous fashion
C
the strand that unzips itself at the beginning of DNA replication
D
the strand that cannot participate in DNA replication
19

When does DNA mutation take place?

A
when the gametes merge together
B
during the DNA replication process
C
as soon as the new DNA is created
D
after the DNA replication process occurs

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