Chapter 3 DNA/RNA

Question 1

Nucleotides have:

Answer 1

One phosphate
One sugar
One base (ATCG, or AUGC)

Question 2

DNA 4 bases

Answer 2

1. Adenine
2. Thymine
3. Guanine
4. Cytosine

Question 3

Draw a DNA

Answer 3

Question 4

In DNA, the bases are bound to?

Answer 4

The sugar

Question 5

What is the role of a helicase

Answer 5

Unwinds the DNA molecule and break hydrogen bonds between base pairs

Question 6

What is the role of DNA polymerases

Answer 6

to add new nucleotides to pair with the old DNA.

Question 7

What enzyme builds the complementary DNA strand?

Answer 7

DNA polymerase

Question 8

what supplies the energy to build the new DNA strands

Answer 8

by taking off two Phosphates off

Question 9

In a DNA mutation - a replication can go wrong. So define Point Mutation

Answer 9

when just one base pair is paired incorrectly.

Question 10

one of the reasons why a mutation can occur

Answer 10

Mutagens - chemical that damage the DNA

Question 11

Differences and Similarities DNA (Picture)

Answer 11

Question 12

Where does transcription take place?

Answer 12

Nucleus

Question 13

monomer unit of proteins

Answer 13

Amino acids

Question 14

What bond connects the monomer unit in a protein

Answer 14

Peptide bond

Question 15

Determine the mRNA sequence complementary to a DNA sequence.

Answer 15

Transcription - mrna - Translation

Question 16

the part of the DNA that the RNA polymerase binds to

Answer 16

to the promoter?

Question 17

Describe the function of RNA polymerase

Answer 17

unwind the DNA, also it is an enzyme that will build the new RNA

Question 18

What enzyme builds RNA?

Answer 18

RNA Polymerase

Question 19

The sequence was ATCG then the complementary mRNA sequence would be

Answer 19

UAGC

remember T-A then C-G but this is rna so A-U , T-A, C-G, G-C

Question 20

Types of RNA and function

Answer 20

Question 21

where are ribosomes produced?

Answer 21

Nucleolus