Chapter 18 Gegulation Of Gene Expression

Question 0

Three section of an operon

Answer 0

Genes, promoter, operator

Question 1

How many types of operons are there and what are they

Answer 1

2, repressible, inducible

Question 2

What is a regulatory gene

Answer 2

A gene that is responsible for creating the protein that attaches to the operator

Question 3

Inducible operons must be

Answer 3

Turned on by a substance that is present

Question 4

Repressible operons are always turned on until

Answer 4

There is to much a substance in a cell

Question 5

What attaches to the operator

Answer 5

Repressor or activator

Question 6

Inducible operons are always turned off until

Answer 6

There is too much of a substance present

Question 7

Transcriptional, post transcriptional and post translational are types of

Answer 7

Gene regulation in eukaryotic cells

Question 8

Types of transcriptional regulation

Answer 8

DNA coiling and transcriptional regulatory proteins

Question 9

Types of post transcriptional regulation are

Answer 9

Alternative splicing , micro RNA regulation, mRNA breakdown and translation initiation

Question 10

Types of post translational regulation

Answer 10

Protein activation and protein breakdown

Question 11

How does DNA coiling effect expression

Answer 11

DNA can not be transcribed unless it is uncoiled

Question 12

Methylation of of DNA causes

Answer 12

Condensing which makes transcription impossible

Question 13

Tail acetylation causes what to happen

Answer 13

DNA to uncondense for replication and transcription

Question 14

Activator proteins attach to DNA sequences called

Answer 14

Enhances

Question 15

Repressor proteins bind to _______ to turn off DNA transcription

Answer 15

Silencers

Question 16

Splicing and alternative spicing are a type of

Answer 16

Post transcriptional regulation

Question 17

Micro RNA are

Answer 17

Small fragments of non protein coding RNA

Question 18

Micro RNA regulates expression by

Answer 18

Blocking translation and triggering degradation

Question 19

Post translational expression has to do with the activation and breakdown of

Answer 19

Protein

Question 20

Types of protein modification

Answer 20

Addition of fictional groups and the cleavage of protein

Question 21

Where are the main places proteins are modified

Answer 21

ER and Goldie

Question 22

Protein cleavage is

Answer 22

The slicing and folding of peptides to activate or change proteins

Question 23

Tumor suppressor genes

Answer 23

Genes who’s product normally help to inhibit cell division

Question 24

Oncogene

Answer 24

Any gene associated with cancer

Question 25

Protein that attaches to gene and stimulates transcription

Answer 25

Activator

Question 26

Porto-oncogene

Answer 26

Genes that normally promote cell division

Question 27

Ros-gene

Answer 27

Tumor suppressor genes

Question 28

CAP stands for

Answer 28

Catabolic activator protein

Question 29

Activators do what

Answer 29

Bind to a gene and increase its affinity for RNA polymerase

Question 30

Block RNA from being translated

Answer 30

Micro RNA