8.3 the structure of RNA

Question 1

genome definition

Answer 1

complete set of genes in a cell

Question 2

proteome definition

Answer 2

full range of proteins that a cell is able to produce

Question 3

what are the component parts of RNA?

Answer 3

• pentose sugar
• organic bases (A, U, C, G)
• phosphate group

Question 4

describe the mRNA structure

Answer 4

• long strand
• single stranded
• helix shape

Question 5

describe the tRNA structure

Answer 5

• small
• single stranded
• clover- leaf shape

Question 6

where is the anticodon found?

Answer 6

tRNA

Question 7

where is the codon found?

Answer 7

mRNA

Question 8

what is a codon?

Answer 8

sequence of 3 bases on mRNA that codes for a single amino acid

Question 9

what is the role of mRNA?

Answer 9

act as a template for protein synthesis

Question 10

how is mRNA suited for its function?

Answer 10

possesses codons that determines the amino acid sequence of a specific polypeptide

Question 11

what is the role of tRNA?

Answer 11

carry specific amino acids to mRNA

Question 12

draw and label a tRNA molecule

Answer 12

page 209

Question 13

how many tRNA molecules are there and why?

Answer 13

as many tRNA molecules as there are triplet codes as genetic code is degenerate

Question 14

what is guanine paired with?

Answer 14

cytosine

Question 15

what is adenine paired with?

Answer 15

uracil/ thymine