Molecular Basis of Inheritance

Question 1

Who won the Nobel Price in 1962?

Answer 1

Watson and Crick

Question 2

Who first isolated nucleic DNA from pus cells and called it nuclein?

Answer 2

Friedrich Meischer

Question 3

Who identified the three constituents of nucleic acids?

Answer 3

Albert Kossel

Question 4

Phosphodiester bond?

Answer 4

A phosphate connects 5’C of pentose sugar to 3’C of another pentose sugar.

Question 5

Ribose?

Answer 5

C5 H10 O5, in RNA

Question 6

Deoxyribose

Answer 6

C5 H10 O4, in DNA

Question 7

Furanose ring structure

Answer 7

the type of structure that the sugar molecules have

Question 8

Purines

Answer 8

purines are 9- membered dicyclic rings attached together at the 4 and 5 positions while having nitrogens at positions 3, 7, and 9

Question 9

the two purines

Answer 9

adenine and guanine

Question 10

Pyrimidines

Answer 10

pyrimidines are 6 membered monocyclic ring with nitrogen at 1 and 3 position.

Question 11

the three pyrimidines

Answer 11

cytosine, thymine, and uracil

Question 12

6-amino purine C5H5N5

Answer 12

adenine

Question 13

6-oxy-2-aminopurine-C5H5N5O

Answer 13

guanine

Question 14

2,4-dioxy-5-methylpyrimidine C5H6N2O2

Answer 14

thymine

Question 15

2 oxy 4 amino pyrimidine c4h5n3o

Answer 15

cytosine

Question 16

2,4 dioxypyrimidine C4H4N2O2

Answer 16

uracil

Question 17

nucleoside

Answer 17

sugar + nitrogenous base pair

Question 18

nucleotide

Answer 18

phosphate + nucleoside

Question 19

5’ end

Answer 19

free phosphate side

Question 20

3’ end

Answer 20

free pentose side

Question 21

Avery, MacLeod and McCarty

Answer 21

presented first evidence that DNA is genetic material by genetic transformation experiment

Question 22

Hershy and Chase

Answer 22

showed that the DNA is the carrier of genetic information from parent to offspring