Question

Which of the following statements are FALSE?

A

Discrete units of hereditary information are called genes

B

A locus is the precise place on a segment of DNA that codes usually for proteins

C

A clone is a group of genetically identical offspring

D

In asexual reproduction two indivual cells pass on their genetic information

Purines include

A

Histones

B

Adenine

C

Cytosine

D

Guanine

E

Only (B) and (D)

Which of the following is CORRECT?

A

Helicases unwind DNA strands

B

Topoisomerase rejoin DNA strands

C

Single strand binding proteins help keep DNA strands from re-pairing during the replication process

D

All of the above

Which of the following is CORRECT?

A

Eukaryotes have usually a single origin of replication

B

The initial nucleotide chain produced during DNA synthesis is a short strand of RNA called a primer

C

The sugar backbone in DNA is ribose

D

Polymerases catalyze the synthesis of new DNA

E

Both (B) and (D)

Which of the following is CORRECT?

A

The semiconservative model applies to DNA replication

B

Prior to replication hydrogen bonds between DNA strands are broken

C

The Y shaped region in unwound DNA strands is called the replication fork

D

All of the above

Answer 1

1 In asexual reproduction two indivual cells pass on their genetic information - false

2 Only (B) and (D)

3) All of the above

4) The initial nucleotide chain produced during DNA synthesis is a short strand of RNA called a primer is true.

5) Both (B) and (D)

The initial nucleotide chain produced during DNA synthesis is a short strand of RNA called a primer ,

Polymerases catalyze the synthesis of new DNA

6) D