Question 1

A new nucleotide is added to a growing strand of DNA at the 3' end.

Accepted Answer

A) True 
 B)False

Question 2

When the RNA primers are removed from the 5' ends of eukaryotic chromosomes after replication,DNA polymerase is unable to fill in the gaps.What prevents the chromosomes from getting shorter and shorter with each round of replication?

Accepted Answer

The enzyme telomerase maintains chromoso...

Question 3

Why do tumor cells in mammals have telomerase activity?

Accepted Answer

Tumor cells are "immortal" cells,and the...

Question 4

Where does the initiator protein bind DNA at the start of replication?

Accepted Answer

A)  At a replication fork
B)  At an origin of replication
C)  At any AT-rich region
D)  At a promoter region
E)  At a start codonF) B) and C)
G) A) and B)

Question 5

Okazaki fragments are made from the lagging strand of the DNA double helix.

Accepted Answer

A) True 
 B)False

Question 6

Which enzyme activity is associated with the proofreading mechanism of DNA polymerase I?

Accepted Answer

A)  5'-to-3' exonuclease activity
B)  3'-to-5' exonuclease activity
C)  5'-to-3' polymerase activity
D)  Both A and B
E)  All of theseF) A) and B)
G) B) and E)

Exam 3: DNA Replication

A new nucleotide is added to a growing strand of DNA at the 3' end.

Correct Answer
verified

When the RNA primers are removed from the 5' ends of eukaryotic chromosomes after replication,DNA polymerase is unable to fill in the gaps.What prevents the chromosomes from getting shorter and shorter with each round of replication?

Correct Answer
verified
The enzyme telomerase maintains chromoso...
View Answer

Okazaki fragments are made from the lagging strand of the DNA double helix.

Correct Answer
verified

Which enzyme activity is associated with the proofreading mechanism of DNA polymerase I?

Correct Answer
verified

Where does the initiator protein bind DNA at the start of replication?

Correct Answer
verified

Why do tumor cells in mammals have telomerase activity?

Correct Answer
verified
Tumor cells are "immortal" cells,and the...
View Answer

Exam 3: DNA Replication

A new nucleotide is added to a growing strand of DNA at the 3' end.

Correct AnswerverifiedShow Answer

When the RNA primers are removed from the 5' ends of eukaryotic chromosomes after replication,DNA polymerase is unable to fill in the gaps.What prevents the chromosomes from getting shorter and shorter with each round of replication?

Correct AnswerverifiedThe enzyme telomerase maintains chromoso...View AnswerShow Answer

Okazaki fragments are made from the lagging strand of the DNA double helix.

Correct AnswerverifiedShow Answer

Which enzyme activity is associated with the proofreading mechanism of DNA polymerase I?

Correct AnswerverifiedShow Answer

Where does the initiator protein bind DNA at the start of replication?

Correct AnswerverifiedShow Answer

Why do tumor cells in mammals have telomerase activity?

Correct AnswerverifiedTumor cells are "immortal" cells,and the...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified
The enzyme telomerase maintains chromoso...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Tumor cells are "immortal" cells,and the...
View Answer