ch 8

Question 1

why do cells have nucleic acids

Answer 1

building blocks for DNA RNA proteins, needs for replication, transcription, and translation

Question 2

DNA replication

Answer 2

semiconservative, bidirectional, DNA poly, templates, nucleotides, primers, timed cell growth and division,

Question 3

how DNA is marked

Answer 3

methylating a or c

Question 4

restriction endonucleases

Answer 4

enzymes that cuts DNA that is not marked as its own

Question 5

rna synthesis via

Answer 5

transcription,
needs promoters, sigma factors, RNA poly.
elongation, termination (rho indie and rho dependent)

Question 6

operons

Answer 6

coordinate expression of genes that function in same bio pathway (lac), transcribed together

Question 7

coupled transcription and translation

Answer 7

in pro, DNA can be read and translated as its being transcribed

Question 8

shine dalgarno sequence

Answer 8

translation initiation sequence

Question 9

translation steps

Answer 9

initiation, elongation, termination

Question 10

pro ribosome vs euk

Answer 10

70s vs 80s

Question 11

covalent modification example

Answer 11

translation processing

termini cleave, chem group added, single peptide removed

Question 12

gyrase

Answer 12

relieves positive supercoils

Question 13

Initiation involves

Answer 13

Promoter, Sigma factor, RNA Poly

Question 14

sigma factor

Answer 14

promote binding of RNA polymerase to promoter

Question 15

rho independent

Answer 15

forms hairpins

Question 16

rho dependent

Answer 16

smth about rho chasing smth out

Question 17

N-Formylmethionin

Answer 17

bacteria
initiation of protein synthesis- translation

Question 18

Antibiotic target of steps in
building macromolecules

Answer 18

idk binds to ribosome?