AP Biology DNA Structure and Replication

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

Why is DNA important?

• it is very small and very complicated

• it's in everything

• it serves as the blueprint for traits of all living things

• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Cytosine always pairs with

• Adenine

• Thymine

• Uracil

• Guanine

Guanine bonds with ______________.

• Adenine

• Guanine

• Cytosine

• Thymine

Which enzyme is responsible for adding the free nucleotides to the replicating DNA? ​

• DNA Helicase

• DNA Ligase

• DNA polyermase

• RNA Polymerase

DNA replication results in two DNA molecules,

• each one with two original strands

• each one with two new strands

• each one with one new strand and one original strand

• one with two new strands and the other with two original strands

Before replication, the DNA helix is ________

• Unwound

• Coiled

• Fragmented

• Compressed

Semiconservative replication is the process in which a strand of the parental DNA acts as ____________ the new strand

• the opposite of

• the template for

During synthesis, nucleotides are added to the __ side of the growing new strand

• 5'

• 3'

• 4'