DNA Structure Honors Biology

Which of the following replication enzymes is used to unwind the DNA double helix?

• DNA polymerase

• Primase

• DNA ligase

• Helicase

DNA replication is semi-conservative. This means that __________.

• both double strands have different percentages of nucleotides

• both double strands have a newly created strand and an original template strand

• an entirely new synthesized DNA molecule is created, while the original double helix stays together

• none of the above

Tags

NGSS.HS-LS1-1

Which of the following complementary base pairs are correct?

• A - T

• T - C

• A - G

• G - U

Which enzyme catalyzes the elongation of a new DNA strand in the 5' → 3' direction?

• Ligase

• DNA polymerase

• Primase

• Lactase

DNA is a polymer made of monomers (building blocks) called

• Nucleotides

• Proteins

• Amino Acids

• Lipids

Site or section where double-stranded DNA splits apart into 2 single strands

• Leading Strand

• Replication Fork

• Lagging Strand

• RNA primer

Which strand is replicated continuously?

• Leading strand

• Lagging strand

• Template strand

DNA polymerase can only add nucleotides in the ___________ direction.

• 5' to 3'

• 5' to 5'

• 3' to 5'

• 3' to 7'

What makes up the SIDES of a DNA ladder?

• nitrogen bases

• sugars & phosphates

• genes & chromosomes

• RNA

Tags

NGSS.HS-LS1-1

What makes up the rungs (steps) of a DNA ladder?

• sugars & phosphates

• nitrogen bases

• sugars

• genes & chromosomes

Tags

NGSS.HS-LS1-1