AP Biology DNA History Structure and Replication

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

What SHAPE is DNA?

• single strand

• straight ladder

• double helix (twisted ladder)

• DNA has no shape

Which of the following best describes a DNA molecule?

• double helix

• contains ribose

• made of amino acids

• contains Uracil

Tags

NGSS.HS-LS1-1

Nitrogenous bases are joined by which type of bond?

• polar bonds

• ionic bonds

• covalent bonds

• hydrogen bonds

Tags

NGSS.HS-LS1-1

What is the complement to the DNA strand below:
5'-ATGCCAT-3'

• 5'-TACGGTA-3'

• 3'-TACGGTA-5'

• 3'-ATGGCAT-5'

• 5'-ATGGCAT-3'

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

What is the name of this enzyme?

• DNA Helicase

• DNA Ligase

• DNA polyermase

• RNA Polymerase

Tags

NGSS.HS-LS1-1

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

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication

• Translation

• Transcription