Function, Structure and Replication of DNA Review

Question 1

What are the building blocks of DNA?

Answer 1

Nucleotides

Question 2

What are the 3 parts of a nucleotide?

Answer 2

Phosphate group, deoxyribose, nitrogenous base

Question 3

What are the purines? How many rings do they have?

Answer 3

Adenine and guanine, 2 rings

Question 4

What are the pyrimidines? How many rings do they have?

Answer 4

Thymine and cytosine, 1 ring

Question 5

What 4 scientists discovered the structure of DNA?

Answer 5

Rosalind Franklin, Maurice Wilkins, James Watson, Francis Crick

Question 6

(Replication step 1) DNA is unzipped by the enzyme __________, which breaks the __________ bonds between the nitrogen bases

Answer 6

DNA helicase, hydrogen

Question 7

(Replication step 2) These unpaired bases now combine with their ___________ strands floating in the ___________

Answer 7

Complementary, nucleus

Question 8

(Replication step 3) The enzyme __________ joins individual nucleotides to produce the new DNA molecule. This enzyme even ____________ each new DNA strand

Answer 8

DNA polymerase, proofreads

Question 9

(DNA) A —->

Answer 9

T

Question 10

(DNA) T —->

Answer 10

A

Question 11

(DNA) G —->

Answer 11

C

Question 12

(DNA) C —->

Answer 12

G

Question 13

What is replication?

Answer 13

DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule.