DNA & DNA Replication

Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

The enzyme that unwinds the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

Why does DNA replicate?

• To create another copy for the new cell
• To create a duplicate copy in case the original gets damaged
• To create a new copy to replace the damaged original

DNA replication results in

• 2 completely new DNA molecules

• 2 DNA molecules that each contain a strand of the original

• 1 new DNA molecule and 1 old

• 1 new molecule of DNA

What is the shape of DNA?

• Double helix
• Triple helix
• Flat, bilayer
• Three-pronged rigid ladder

The picture below shows the steps of DNA replication beginning with step one and ending with step three.

​Because you are reusing the old, or parent, DNA strand DNA replication is said to be

• Semi- Conservative

• Semi-discontinuous

• Continuous

• Fully-Conserveative

Match he nucleotide with its complementary nucleotide. (DNA to DNA).

Adenine -

• Thymine

• Guanine

• Cytosine

Tags

NGSS.HS-LS1-1

Match he nucleotide with its complementary nucleotide. (DNA to DNA).

Cytosine-

• Thymine

• Guanine

• Adenine

The directionality of DNA is said to be ___________, because it is side by side by goes in opposite directions.

• Anti-directional

• Parallel

• Anti-parallel

• Anti-uniform

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1