Ch. 8 Test Review

What does DNA polymerase do?

• Hold DNA strands apart and attract bases

• Binds nucleotides and corrects base pair errors

• Transmits messages that are translated into proteins

• Attracts amino acids to the ribosomes for assembly

Tags

NGSS.HS-LS3-2

Which are true for the four DNA bases? (select two answers)

• A = C

• A = T

• G = T

• C = G

• C = T

Replication happens....

• when tRNA unzips DNA

• During the M phase

• when nucleotides float in the nucleus

• once in the cell cycle

What type of mutation happens when a nucleotide is deleted from the DNA

• translocation

• gene duplication

• point mutation

• frameshift mutation

Tags

NGSS.HS-LS3-2

How many nucleotides make up a codon to code for an amino acid?

• 3

• 4

• 16

• 20

What causes the lac operon to be "on"

• promoters

• repressors

• lactose

• enzymes

How are transcription and replication different?

• transcription follows cellular control

• transcription is catalyzed by large and complex enzymes

• transcription occurs in the nucleus

• transcription happens multiple times in the cell cycle

How many amino acids are used to make up the proteins in the human body?

• 3

• 46

• 16

• 20

What does replication do?

• Tells RNA polymerase where to start

• Turns the lac operon on

• Turns DNA to RNA

• Makes an exact copy of the cells DNA

Tags

NGSS.HS-LS3-2

The central dogma states that information goes in which order

• DNA to RNA to proteins

• RNA to DNA to proteins

• Proteins to DNA to RNA

• Ribosomes to proteins to DNA