Exam 3.2

Question 1

Describe RNA

Answer 1

stores info for polypeptide

Question 2

what is a 5 prime end made up of

Answer 2

phosphate

Question 3

what is 3 prime end made up of

Answer 3

hydroxl

Question 4

what is similar in bacteria and eukaryotes

Answer 4

gene expression

Question 5

where does transcription take place?

Answer 5

nucleus

Question 6

where does RNA processing take place?

Answer 6

nucleus

Question 7

where does translation take place?

Answer 7

cytoplasm

Question 8

is all DNA part of part of a gene?

Answer 8

no

Question 9

define mRNA

Answer 9

gene that codes as a protein

Question 10

what does m stand fro in mRNA?

Answer 10

messenger

Question 11

define codon

Answer 11

has the code for one amino acid in a protein

Question 12

how many amino acids does one codon code for?

Answer 12

4

Question 13

how many possibilities can a full codon code for?

Answer 13

64

Question 14

how many amino acids are there

Answer 14

20

Question 15

how many stop codons are there?

Answer 15

3

Question 16

define a redundant/degenerate codon

Answer 16

there are synonyms in the code

Question 17

AUG is a codon that specifies the amino acid

Answer 17

thymine

Question 18

thymine is a what?

Answer 18

start codon

Question 19

what does every polypeptide chain begin with?

Answer 19

AUG

Question 20

what are the three major phases of gene expression in eukaryotes?

Answer 20

transcription, rna processing, translation