5.1 - DNA structure

Question 1

Did the smooth strain that was virtulent kill the mouse?

Answer 1

yes

Question 2

Did the rough strain that was non-virtulent kill the mouse?

Answer 2

no

Question 3

Did the heat killed smooth strain kill the mouse?

Answer 3

no

Question 4

Did the rough strain & heat killed smooth strain mixture kill the mouse?

Answer 4

yes

Question 5

What disease did Griffith research?

Answer 5

pneumonia

Question 6

What did Griffith call the process of one strain of bacteria aquiring a “factor” from another bacteria?

Answer 6

transformation

Question 7

After Averys’ test with DNA, were scientists convinced that DNA was the cell’s genetic material?

Answer 7

no, scientist still believed that DNA was too simple to be the genetic material of cells. They needed more information and testing to be convinced

Question 8

In DNA what are the 4 nitrogenous bases

Answer 8

Adenine (A), Guanine (G), Cytosine (C), Thymine (T)

Question 9

If A = 30% ; T = ?

Answer 9

30%

Question 10

If A = 30% ; G = ?

Answer 10

20%

Question 11

What are the 3 components of DNA?

Answer 11

a phosphate group, a deoxyribose molecule, a nitrogenous base

Question 12

What bonds hold the nitrogenous bases together?

Answer 12

hydrogen bonds

Question 13

What bonds hold the phosphate group and the deoxyribose molecule together?

Answer 13

covalent bonds

Question 14

Are DNA strands parallel?

Answer 14

no, they are antiparallel because they run in opposite directions, but never cross