DNA transcription

Question 1

pathway to make proteins

Answer 1

DNA-> mRNA -> tRNA and ribosomes ->protein

Question 2

transcription is

Answer 2

the process of copying the sequence of one strand of DNA, the template strand, in the nucleus

Question 3

who copies the template strand of DNA?

Answer 3

mRNA

Question 4

role of RNA polymerase

Answer 4

• binds to DNA at promotors and separates the strands

- then uses one strand of DNA to add complementary nucleotides to mRNA

Question 5

what are promotors?

Answer 5

regions in DNA where RNA polymerase must bond to begin transcription

Question 6

what is the promotor sequence box?

Answer 6

the TATA box

Question 7

terminal signals are

Answer 7

act as a signal to stop transcription

Question 8

mRNA processing is

Answer 8

the editing of the mRNA chain to make it functional

Question 9

introns

Answer 9

non functional parts of mRNA that are taken out

Question 10

exons

Answer 10

functional parts of mRNA that are kept on the strand

Question 11

ligase role in mRNA processing

Answer 11

joins the exons together after introns have been taken out

Question 12

after exons are joined together,

Answer 12

a GTP (guanine triphosphate) cap added to 5’ and a poly A tail added to 3’ end