Nucleic Acids

Question 1

Nucleotides are joined by what type of bond?

Answer 1

Phosphodiester

Question 2

Nitrogenous bases on the 1’ C are linked by what type of bond?

Answer 2

glycosidic bonds

Question 3

1’ carbon does what?

Answer 3

forms glycosidic bond

Question 4

2’ carbon does what?

Answer 4

location of hydroxyl group (DNA vs. RNA)

Question 5

3’ carbon does what?

Answer 5

hydroxyl group that polymerizes with 5’ carbon of joining chain

Question 6

5’ carbon does what?

Answer 6

phosphates that join that 3’ carbon of joining nucleotide

Question 7

Which class of antibiotic inhibits DNA gyrase?

Answer 7

Quinolones

Question 8

what is hnRNA?

Answer 8

mRNA in various stages of activity

Question 9

What is snRNA?

Answer 9

splices hnRNA to form mRNA

Question 10

What are the important features of tRNA?

Answer 10

anticodon loop, CCA-3’ terminus, contains T not U

Question 11

what are the important features of mRNA in Eukaryotes?

Answer 11

5’ terminus has a m7G-cap, 3’ poly-A tail, 5’ and 3’ untranslated regions