Gene Expression And Cancer

Question 1

What what are the control sequences in eukaryotic genes on a DNA strand

Answer 1

Enhancer, transcription factors, promoters

Question 2

What are the causes of cancer

Answer 2

Growth factors, carcinogen, mutagens, viruses, oncogenes, tumor suppressor gene

Question 3

What are treatments for cancer

Answer 3

Surgery, radiation, chemotherapy, tumor suppresser genes

Question 4

Types of cancer

Answer 4

Carcinomas, sarcomas, and lymphomas

Question 5

Carcinomas

Answer 5

Skin and organ tissues

Question 6

Sarcomas

Answer 6

Bone and muscle

Question 7

Lymphomas

Answer 7

Solid tumors in tissues that form blood

Question 8

Onco

Answer 8

Pertaining to tumors

Question 9

Oncogene

Answer 9

A gene that causes cancer or other uncontrolled cell proliferation

Question 10

Metastasis

Answer 10

Can move to other parts of the body and can’t be banine

Question 11

What is gene expression partly related to in eukaryotes

Answer 11

The coiling and uncoiling of DNS within each chromosome

Question 12

Euchromatin

Answer 12

Uncoiled form that is the site of active transcription of DNA into RNA

Question 13

What indicates the degree of gene expression

Answer 13

The degree to which DNA is uncoiled

Question 14

What are the two kinds of segments beyond the promoter in the eukaryotic gene

Answer 14

Introns and exons

Question 15

Introns

Answer 15

The sections of a structural gene that don’t code for amino acids and therefor are not translated into proteins

Question 16

Exons

Answer 16

The sections of a structural gene that are translated into proteins when expressed

Question 17

Where does transcription occur in eukaryotes

Answer 17

The nucleus

Question 18

Pre-mRNA

Answer 18

A form of messenger RNA that contains both introns and exons

Question 19

Enhancer

Answer 19

A noncoding control sequence in a eukaryotic gene that facilitates transcription

Question 20

What must be activated for its associated gene to be expressed

Answer 20

Enhancer

Question 21

Transcription factors

Answer 21

Additional proteins that bind to enhancers and RNA polymerase and regulate transcription

Question 22

What is a zygote

Answer 22

A fertilized egg

Question 23

Cell differentiation

Answer 23

The development of cells having specialized function

Question 24

Morphogenesis

Answer 24

Causes cell differentiation

Question 25

Tumor

Answer 25

An abnormal proliferation of cells that results from uncontrolled, abnormal cell division

Question 26

Why is gene expression important

Answer 26

Conservation of materials because the exons can be reused, respond to the environmental cues if you’re sick your body will know what hormones to send out to create proteins, to prevent uncontrolled growth because through transcription your body knows what hormones to send out so it doesn’t send out to many causing rapid cell growth

Question 27

How can gene regulation happen

Answer 27

Regulating transcription, regulating mRNA(introns stay in the nucleus, exons leave), alter proteins after they are made

Question 28

Describe transcription

Answer 28

Transcription factors (AKA HORMONES) travel from the pituitary gland in your brain to the enhancer. When it touches the enhancer it activates it so it flips over and touches the promoter activating the promoter while the transcription factor is in the middle of the flipped over enhancer