protein synthesis transcription

Question 1

DNA to RNA is termed what?

Answer 1

transcription

Question 2

initiation?

Answer 2

RNA polymerase binds to premotor region.
1: transcribe RNA
2: transcribe mRNA
3: transcribe tRNA

Question 3

elongation?

Answer 3

complementary base pairs are added 5’ to 3’. DNA read 3’ to 5’.

Question 4

termination?

Answer 4

stop code is reached. hairpin loop created.

Question 5

where does transcription occur?

Answer 5

nucleus

Question 6

phases of transcription?

Answer 6

initiation, elongation, termination

Question 7

RNA molecules involved in transcriptoin?

Answer 7

rRNA
mRNA
tRNA

Question 8

rRNA

Answer 8

ribosomal

Question 9

mRNA

Answer 9

mesenger RNA. contains codon and 3 bases. each codon accounts for 1 amino acid

Question 10

tRNA

Answer 10

transfer RNA consisting of 4 loops, most important codon and acceptor stem.

Question 11

loops of tRNA?

Answer 11

anticodon and acceptor

Question 12

anticodon loop

Answer 12

base pairs with the mRNA

Question 13

acceptor loop

Answer 13

binds amino acids (coded for by anticodon)

Question 14

what enzyme binds amino acid to tRNA?

Answer 14

aminoacytltRNA synthetase (requires ATP)

Question 15

code?

Answer 15

DNA

Question 16

codon?

Answer 16

mRNA

Question 17

anti-codon?

Answer 17

tRNA

Question 18

message processing of transcription?

Answer 18

guanylated phosphate cap and polyA tail of 200 adenine residues are added, introns are cut out by splitocosomes, and exons are spliced together by ribozymes