DNA Structure

After replication, what is a DNA molecule made out of?

(The Semi-Conservative Model.)

• Two new strands

• Two old strands

• One old strand and one new strand.

In this diagram, letter G is pointing to

• cytosine

• guamine

• thymine

• adenine

The process in DNA molecules for exact copies of themselves is called

• replication

• duplication

• photosynthesis

• respiration

Adenine matches with

• guanine

• thymine

• cytosine

• adenine

Guanine matches with

• adenine

• thymine

• cytosine

• guanine

Thymine always matches with

• guanine

• adenine

• cytosine

• thymine

Cytosine matches with

• guanine

• adenine

• cytosine

• thymine

Tags

NGSS.HS-LS1-1

The order of nitrogen bases in a DNA molecule is known as the

• morse code

• genetic code

• De Vinci Code

• Viking code

Tags

NGSS.HS-LS1-1

A section of DNA that creates proteins which makes traits is called the

• nitrogen base

• phosphate

• gene

• nucleus

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

From the Gizmo: The first step of DNA replication is

• The DNA molecules separate with the help of DNA Helicase

• Sugar and phosphate groups bond to form sides of new DNA

• Free nitrogen bases begin to pair with bases on each strand

• Answer not given