Question

Which of the following is CORRECT?

A

In the Watson model the DNA strands were determined to be antiparallel

B

Adenine pairs with cytosine

C

Thymine pairs with cytosine

D

Adenine pairs with thymine

E

Both (A) and (D)

Which of the following is CORRECT?

A

The lagging strand is produced in one piece

B

The lagging strand is produced in segments

C

The leading strand is produced in segments

D

All of the above

Which of the following is CORRECT?

A

DNA damage is always permanent

B

DNA ploymerase is able to proof read and correct mismatches as replication occurs

C

DNA ligase is able to reverse mutations

D

The DNA cutting nuclease can repair sections of DNA

E

Both (B) and (D)

Germ cells have ___which allows cells to replicate without shortening the length of the chromosomes with each duplication.

A

DNA polymerase

B

Telomerase

C

Helicase

D

Topoisomerase

The polymerase chain reaction

A

Can make billions of copies of DNA from a sample

B

Occurs in cells under normal conditions

C

Is widely used in forensic analysis

D

Both (A) and (C)

Answer 1

1. Both A and D

DNA strands are antiparallel. Adenine pairs with thymine.

2. B

Lagging strand is produced in segments.

3. Both B and D

Dna polymerase can proofread and correct mismatches as replication occurs

Dna cutting nucleases can repair section of DNA

4. A

DNapolymerase

5. Both A and C