Exp. 5 & 6_Post Lab

Question 1

stores the genetic information of an organism

Answer 1

DNA

Question 2

transmits that information from one generation to another.

Answer 2

DNA

Question 3

translates the genetic information contained in DNA into proteins needed for all cellular function

Answer 3

RNA

Question 4

Responsible for protein synthesis

Answer 4

Nucleic Acid

Question 5

A nucleic acid is an

Answer 5

unbranched polymer

Question 6

monomer units of nucleic acids are

Answer 6

nucleotides

Question 7

A___________ is an unbranched polymer in which the monomer units are nucleotides.

Answer 7

nucleic acid

Question 8

T or F| ALL nucleic acid molecules are unbranched polymers.

Answer 8

Trueee!!!

Question 9

A nucleotide is composed of:

Answer 9

Nitrogen-containing bases (amines)
Sugar
Phosphate

Question 10

T or F| ATP is an example of a nucleotide

Answer 10

TRUEEE

Question 11

What is ATP composed of?

Answer 11

Adenine
3 phosphate
Ribose

Question 12

Nitrogen containing bases

Answer 12

Purines
Pyramidines

Question 13

2 ringed nitrogen group

Answer 13

Purines

Question 14

1 ringed nitrogen group

Answer 14

Pyrimidines

Question 15

Purines of DNA and RNA

Answer 15

Adenine
Guanine

Question 16

Pyrimidines of DNA

Answer 16

Cytosine
Thymine

Question 17

Pyrimidines of RNA

Answer 17

Cytosine
Uracil

Question 18

Sugar of RNA

Answer 18

Ribose

Question 19

Sugar of DNA

Answer 19

Deoxyribose

Question 20

• crush cell wall

Answer 20

Blender

Question 21

Homogenizing solution

Answer 21

Salt and Dishwashing liquid

Question 22

• removes the lipids and push DNA to the salt solution

Answer 22

dishwashing liquid

Question 23

• increases separation of DNA from hydrophobic layer; aggregates DNA

Answer 23

sodium chloride

Question 24

– promotes aggregation of DNA and wash the DNA from the salt

Answer 24

cold ethanol

Question 25

Test for the deoxyribose in DNA

Answer 25

Dische Diphenylamine Test

Question 26

Dische Test: Reagents

Answer 26

diphenylamine

Sulfuric acid

Question 27

Dische test positive results

Answer 27

light blue to blue depending on the amount of DNA

Question 28

Dische Test: GLUCOSE

Answer 28

Grayish Brown

Question 29

Dische Test: RIBOSE

Answer 29

Greenish brown

Question 30

Dische Test: DEOXYRIBOSE

Answer 30

Bright Blue

Question 31

Dische Test: EXTRACTED DNA

Answer 31

Brownish Blue

Question 32

Hydrolysis of DNA molecule

Answer 32

Acid Hydrolysis

Question 33

breakdown of glycosidic bonds only if pH > 3

Answer 33

Depurination

Question 34

Depurination
breakdown of glycosidic bonds only if pH is

Answer 34

pH > 3

More than 3

Question 35

Products of Depurination

Answer 35

purine base
deoxyribose with phosphate group

Question 36

breakdown of glycosidic bond with phosphodiester bond if pH < 2

Answer 36

Total breakdown

Question 37

Total breakdown
breakdown of glycosidic bond with phosphodiester bond if pH is

Answer 37

pH < 2

Less than 2

Question 38

Extremely low pH_____ DNA completely

Answer 38

hydrolyses

Question 39

Products of total breakdown

Answer 39

phosphate group

purine or pyrimidine base

deoxyribose