DNA

O

1

What is chemotherapy?

the use of drugs to treat a disease

2

Where does protein synthesis take place?

on the ribosomes in the cytoplasm

3

All of the following nitrogen bases in RNA are part of DNA, except

uracil

4

What is labeled "C"?

transfer RNA

5

_______ RNA carries amino acids to the ribosome and adds them to the growing protein.

transfer

J

1

Cancer can spread when cells break off of a tumor and are carried through the body by the ______________

bloodstream

2

Where in the cell does DNA replication take place?

nucleus

3

Any change in the DNA of a gene or chromosome is called a(n) _________________

mutation

4

In RNA, adenine pairs with _________.

uracil

5

What does messenger RNA do during protein synthesis?

copies the coded message from the DNA and carries it into the cytoplasm

R

1

During DNA replication, adenine (A) always pairs with

thymine

2

What is labeled "D"?

messenger RNA

3

Scientists think cancer begins when

Scientists think cancer begins when

4

The genetic code is found in the order of nitrogen ____________ along a gene.

bases

5

The sides of a DNA molecule are made up of alternating sugar and ____________ molecules.

phosphate

M

1

What is labeled "E"?

ribosome

2

During DNA replication cytosine (C) always pairs with

guanine

3

What is a cancer tumor?

a mass of abnormal cells

4

Cancer is a disease in which cells

grow and divide uncontrollably

5

What is labeled "B"?

amino acid

S

1

How many different types of cancer are there?

more than 100

2

The order of the bases along a gene determines the order in which

amino acids are put together to form a protein

3

What are the three nitrogen bases in transfer RNA that pair with bases A-G-U in messenger RNA?

UCA

4

What is labeled "A"?

protein

5

A set of three bases, codes for one specific ____________ in a protein.

amino acid