DNA STRUCTURE AND REPLICATION QUIZ

low temperature and Mg++

low temperature and Ca++

high temperature and Ca++

high temperature and Mg++

2', 3' phosphodiester bonds to form a repetitive sugar-phosphate chain

3', 4' phosphodiester bonds to form a repetitive sugar-phosphate chain

3', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain

2', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain

3'-5'exonuclease activity

5'-3' exonuclease activity

both (a) and (b)

5'-3' endonuclease activity

3000 kilobase

4500 kilobase

6500 kilobase

5500 kilobase

7

8

6

9

helicase

primase

DNA polymerase

DNA ligase

resorption

adhesion

absorption

density

Adenine

Cytosine

Thymine

Uracil

Tm = 69.3° + 0.41 (%)G+C -650/1

Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair)

Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair)

Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair)

an hexamer of three histones without H1 protein

an octamer of four histones with H1 protein

an octamer of four histones without H1 protein

an hexamer of three histones with H1 protein