Lecture 8 - Nucleic Acids

Question 1

what can nuclobases be?

Answer 1

pyrimidines or purines

Question 2

what is pyrimidine?

Answer 2

ring structure found in C,U,T a change in the side change makes each base different

Question 3

what is purine?

Answer 3

a ring structure found in A, G it is a pyrimidine fused to imidazole ring

Question 4

what is GTP?

Answer 4

Guanosine triode phosphate which is important in protein synthesis and cell signalling

Question 5

what is NTP?

Answer 5

nucleoside triode phosphate

Question 6

what does ATP + GTP regulate ?

Answer 6

amount of NTP produced

Question 7

what is CAMP?

Answer 7

produced by adenylate cyclase its an important signalling molecule which contains ribose in nucleotide

Question 8

what do complementary strands of DNA have?

Answer 8

asymmetric ends

Question 9

Describe RNA

Answer 9

converts DNA to form a template molecule for polynucleotide RNA

Question 10

what is the function of mRNA?

Answer 10

converts DNA to form a template molecule

Question 11

Describe tRNA

Answer 11

transports amino acids that build up protein molecules, there are 20, one for each amino acid with a specific anticodon and amino acid

Question 12

Describe rRNA

Answer 12

makes up ribosomes, organelle that translates mRNA

Question 13

what is a central dogma?

Answer 13

information in nucleic acids which can be perpetuated or transferred where the transfer is irreversible