Genetic Code

Question 1

transcription

Answer 1

occurs in the nucleus
DNA –> mRNA
synthesizes 5’ –> 3’

Question 2

RNA polymerase I

Answer 2

located in the nucleolus

synthesizes rRNA

Question 3

RNA polymerase II

Answer 3

located in the nucleus
synthesizes hnRNA (heterogeneous RNA) and snRNA (small nuclear RNA)

Question 4

RNA polymerase III

Answer 4

located in the nucleus

synthesizes tRNA and some rRNA

Question 5

coding/sense strand

Answer 5

complementary to the template (anti sense) strand

What the hnRNA will be except with T replaced with U on the hnRNA

the sequence we want to continue to produce

Question 6

template/anti-sense strand

Answer 6

complementary to the hnRNA strand

Question 7

hnRNA

Answer 7

heterogenous nuclear RNA
this is the byproduct of making a complementary strand to DNA
this is the product before splicing, 5’ cap, and poly A tail occurs

Question 8

poly A tail

Answer 8

made up of adenines

the cytoplasm will destroy the 3’ tail, so the longer the tail, the more time the mRNA has in the cytoplasm

Question 9

histone acetylation

Answer 9

will neutralize a histone’s positive charge -> breaks up the salt bridge and will open up gene expression