NUCLEIC ACID STRUCTURE AND FUNCTION

Question 0

Occurs where the backbones are far apart..

Answer 0

Major groove

Question 1

One turn of B-DNA includes how many base pairs?

Answer 1

10

Question 2

DNA binding proteins to interact with the bases on the _____________ side because the backbones are not in the way.

Answer 2

Major groove

Question 3

Common form of DNA

Answer 3

Right-handed

Question 4

Double-helical molecules are…

Answer 4

Antiparallel

Question 5

How many hydrogen bonds link G-C together?

Answer 5

Three

Question 6

Renaturation or reassociation of separated DNA strands is a process called..

Answer 6

Hybridization

Question 7

Are formed when the molecule is twisted in the opposite direction…

Answer 7

Negative supercoils

Question 8

Enzymes that catalyze topologic changes of DNA…

Answer 8

Topoisomerases

Question 9

Introduces negative supercoils using ATP as energy source…

Answer 9

DNA gyrase

Question 10

The ability of gyrase to relax positive supercoils comes into play during __________.

Answer 10

DNA replication

Question 11

Type of RNA that serves as adapters for translation of mRNA to amino acids..

Answer 11

tRNA

Question 12

The 5’ terminal of mRNA is capped by a..

Answer 12

7-methylguanosine triphosphate that is linked to an adjacent 2’-O-methyl ribonucleoside at its 5’-hydroxyl through 3 phosphates