DNA and RNA

Question 1

Describe the structure of RNA

Answer 1

Single stranded
RIbose sugar
AUGC bases

Question 2

3 types of RNA?

Answer 2

3; messenger, transfer, ribosomal RNA

Question 3

does each type of RNA fold differently?

Answer 3

yes

Question 4

Define: messenger RNA

Answer 4

carries genetic message to the ribosomes where the message is translated into protein

Question 5

Define: ribosomal RNA

Answer 5

RNA: forms 2/3 of ribosomes/large subunit (1/3 proteins)

Question 6

Define: transfer RNA

Answer 6

molecules that carry amino acids to ribosomes where they are used to form proteins

Question 7

Function of DNA?

Answer 7

contains genetic instructions that code for protein synthesis

Question 8

Describe structure of DNA

Answer 8

2 strands (template/non-template aka coding strand)
deoxyribose sugar
ATGC bases

Question 9

Define: template strand

Answer 9

guides construction of pre-mRNA with complementary base sequence

Question 10

Define: non template strand

Answer 10

not copied, but has same sequence as the pre-mRNA except U instead of T

Question 11

How can DNA be seen?

Answer 11

Scanning tunnelling microscopy, not light microscope

Question 12

Define: gene

Answer 12

Segment of a chromosome that codes for a specific polypeptide (21,000 in total)

Question 13

Define: chromosomes

Answer 13

dna combined with histone proteins)