3bio8

Question 1

Hershey and chase

Answer 1

They used the radioactive sulphur and phosphorus

Question 2

Chargaff

Answer 2

He refuted levene

Question 3

Mendel

Answer 3

In 1865 Mendel made a hypothesis for heredity with no knowledge of DNA. The material that carries traits wasn’t discovered for another century

Question 4

Pheobus levene

Answer 4

He found nucleotides

Question 5

Griffith

Answer 5

He used the mice

Question 6

hammerling

Answer 6

He took the algae

Question 7

Avery and mccleid and Mc carry

Answer 7

They expanded in Griffiths work and contradicted levene. They used the protease, RNase and dnase

Question 8

WhAt is chargaffs rule

Answer 8

A+T and C+G is equal

Question 9

What bases are pyramidines

Answer 9

A and g

Question 10

Why couldnt meischer conclude that DNA was the material of hereditary

Answer 10

Both DNA and protein are in the nucleus

Question 11

Meischers conclusion

Answer 11

Something in the nucleus is important

Question 12

Structural difference in Deoxyribose from ribose

Answer 12

Carbon 2, the second from the right is bonded to no oxygens in deoxyribose

Question 13

Shape of ribose

Answer 13

Pentagon

Question 14

Hydroxyls of what carbons are below the ring in ribose

Answer 14

The middle two

Question 15

Is the methyl above or below the ring in ribose

Answer 15

Above