8.3 structure of ribonucleic acid

Question 1

what is a codon?

Answer 1

3 bases on mRNA for 1 amino acid

Question 2

what is a genome?

Answer 2

complete set of genes in a cell (including mitochondria & chloroplasts)

Question 3

what is a complete proteome?

Answer 3

full set of proteins the genome can produces

Question 4

what is a proteome?

Answer 4

proteins produced by a specific cell under certain set of conditions

Question 5

what is the structure of mRNA?

Answer 5

single, long strand - single helix

Question 6

where & when is mRNA made?

Answer 6

nucleus, during transcription of DNA

Question 7

how could mRNA leave the nucleus?

Answer 7

through pores in nuclear envelope

Question 8

what does mRNA associate with for translation & forming polypeptides?

Answer 8

ribosomes / REM

Question 9

what is the relative length & shape of tRNA?

Answer 9

relatively short, single stranded
clover-leaf shape

Question 10

where is the amino acid attachment site at in tRNA?

Answer 10

extended 3’ end

Question 11

what is the anticodon?

Answer 11

complementary to codon on mRNA to place amino acids in the correct sequence