4.1 study guide

Question 1

What did Griffith call one strain of bacteria acquiring a factor from another bacteria?

Answer 1

Transformation

Question 2

Avery, McLeod, and McCartney wanted to figure out what?

Answer 2

If DNA or proteins were the transforming factors. Turned out to be DNA.

Question 3

What did Hershey and Chase do?

Answer 3

Experimented with viruses. Concluded that DNA was still the transforming factor.

Question 4

What was Chargoff responsible for?

Answer 4

A=T
G=C

Question 5

Adenine pairs with what base?

Answer 5

thymine

Question 6

Guanine pairs with what base?

Answer 6

cytosine

Question 7

What 2 bases are pyrimidines?

Answer 7

T and C

Question 8

What 2 bases are purines?

Answer 8

A and G

Question 9

What is a pyrimidine?

Answer 9

1 ring

Question 10

What is a purine?

Answer 10

2 rings

Question 11

What type of bond holds the 2 strands together?

Answer 11

hydrogen bonds

Question 12

What type of bond holds the nucleotide together to create the sugar/phosphate backbone?

Answer 12

covalent phosphodiesterase bonds

Question 13

5 prime is attached to what group?

Answer 13

phosphate

Question 14

3 prime is attached to what group?

Answer 14

hydroxyl

Question 15

DNA runs

Answer 15

anti parallel

Question 16

What does anti-parallel mean?

Answer 16

Complementary strands run in opposite directions of each other.