DNA Review

Question 1

How many “sides” does DNA have?

Answer 1

2

Question 2

What is DNA replication?

Answer 2

The copying of DNA during

S phase of interphase.

Question 3

Where does DNA replication occur?

Answer 3

Nucleus

Question 4

If one side of DNA is:

TAGCTAGC, what is on the complimentary side?

Answer 4

ATCGATCG

Question 5

How many sides are used as a template during DNA Replication?

Answer 5

Both (2) sides are used to replicate DNA.

Question 6

What is transcription?

Answer 6

Using DNA as a template to make RNA.

Question 7

Where does transcription occur?

Answer 7

Nucleus

Question 8

How many sides of DNA are used as a template during transcription?

Answer 8

Only 1, the active side.

Question 9

What is a codon?

Answer 9

A codon is a sequence of 3 mRNA nucleotides that code for a particular amino acid.

Question 10

What types of RNA are involved in translation?

Answer 10

mRNA
tRNA
rRNA

Question 11

What is a purine?

Answer 11

A nitrogen base with a double ring shape.

Question 12

What is a pyrimidine?

Answer 12

A nitrogen base with a single ring shape.

Question 13

Which bases are purines?

Answer 13

Guanine and Adenine

Question 14

Which bases are pyrimidines?

Answer 14

Thymine, Cytosine & Uracil

Question 15

What is found in a DNA nucleotide?

Answer 15

Phosphate
Deoxyribose (sugar)
Nitrogen base (A,T,G, or C)

Question 16

What is a base pair?

Answer 16

A base pair is is two complimentary nucleotides held together by a weak hydrogen bond between the bases.

Question 17

Where are anticodons found?

Answer 17

tRNA

Question 18

What is the job of mRNA?

Answer 18

mRNA is a readable version of DNA’s instructions used by ribosomes to make proteins.

Question 19

If DNA has the sequence ATGC, what RNA nucleotides would be complimentary to it?

Answer 19

UACG

Question 20

Which base is not found in RNA?

Answer 20

Thymine