Sem 2. Final

Question 1

gene expression is how the genetic information flows from ____ (Tt) to _____ (short plant)

Answer 1

1. GENOTYPE
2. PHENOTYPE

Question 2

the turning on and off genes is called __________

Answer 2

GENE REGULATION

Question 3

the site where RNA polymerase attaches and starts transcription is ____ __________

Answer 3

THE PROMOTER

Question 4

the control sequence that determines if RNA polymerase can attach is ___ _________

Answer 4

THE OPERATOR

Question 5

the entire stretch of DNA required for transcription is ___ _______

Answer 5

THE OPERON

Question 6

the protein that binds to the operator and blocks RNA polymerase from attaching is ___ ________

Answer 6

THE REPRESSOR

Question 7

the protein that binds to the DNA and makes it easier for the RNA polymerase to bind to the promoter is called __ ______

Answer 7

AN ACTIVATOR

Question 8

the _______ ____ codes for the repressor protein

Answer 8

REGULATORY GENE

Question 9

when _ ______ ____ attaches to the gene, it causes the gene to wrap tighter around the histones

Answer 9

A METHYL GROUP

Question 10

when __ ______ _____ attaches to the gene, it causes the gene to unwind.

Answer 10

AN ACETYL GROUP

Question 11

the small proteins that give the DNA an “anchor” in order to twist and pack into the cell are ______

Answer 11

HISTONES

Question 12

_ _______ ________ cleaves the target gene from the DNA sequence

Answer 12

A RESTRICTION ENZYME