Quiz #3

Question 1

name the 3 parts of the nucleotide

Answer 1

nitrogenous base, phosphate group, deoxyribose sugar

Question 2

what is chairgaffs bass pairing rule

Answer 2

adenine and thymine

cytosinine and guanine

Question 3

If 30% of a strand was adenine, what percentage would be guanine

Answer 3

20%

Question 4

What shape can the DNA molecule be described as

Answer 4

double helix

Question 5

what nitrogenous base is pyrimidine and could be cytosine

Question 6

what nitrogenous base is purine and could be guanine

Question 7

what nitrogenous base is purine and could be thymine

Question 8

what nitrogenous base is pyrimidine and could be adenine

Question 9

do you have the same number of genes as a stranger

Answer 9

yes

Question 10

do you have the same number of chromosomes as a stranger

Answer 10

yes

Question 11

do you have the same order of nitrogenous bases than a stranger

Answer 11

no

Question 12

do you have the same types of nucleotides as a stranger

Answer 12

yes

Question 13

what sources of DNA could be found at a crime scene

Answer 13

clothing and saliva

Question 14

what is the best purpose of using detergent to extract DNA

Answer 14

Detergent breaks down the lipids in the nuclear and cell membranes allowing DNA to be extracted from the nucleus

Question 15

why do you add meat tenderizer to an extraction buffer

Answer 15

it helps break down the proteins in the bilayer and DNA

Question 16

TAQ polymerase

Answer 16

An enzyme that is responsible for building new strands of DNA from free nucleotides

Question 17

Denature

Answer 17

The stage inn PCR amplification where one double strand of DNA is broken into two single strands