Science Viruses

Question 0

operon

Answer 0

a unit made of linked genes that is thought to regulate other genes responsible for protein synthesis.

Question 1

Are viruses alive and what are they made of?

Answer 1

no they are not alive, viruses are an inner core of DNA surrounded by a protein coat

Question 2

lac operon

Answer 2

when repressor binds to promoter and blocks RNA polymerase, lactose sugar connects to the repressor so that it will unbind and let RNA polymerase transcript, once lactose is low, lactose disconnects the repressor and it returns to DNA

Question 3

trp operon

Answer 3

when RNA polymerase makes a lot of tryptophan, it will attach to a repressor to cause it to stop the production until tryptophan is low again

Question 4

promoter

Answer 4

the region where RNA polymerase can connect to start transcription

Question 5

operator

Answer 5

segment of DNA where a repressor binds to

Question 6

repressor

Answer 6

protein that binds to an operator to block transcription

Question 7

inducer

Answer 7

lactose, inhibits the repressor from freely binding to the operator

Question 8

RNA Polymerase

Answer 8

enzyme that uses transcription across a strand of DNA to make mRNA to go through traslation