Chapter 4 Flashcards
1
Q
Nitrogen bases
A
Molecules that contain nitrogen and other elements
2
Q
DNA replication
A
The process in which an identical copy of a DNA strand is formed for a new cell
3
Q
Messenger RNA
A
Copies the message from DNA in the nucleus and carries the message to the ribosomes in the cytoplasm
4
Q
Transfer RNA
A
Carries amino acids to the ribosomes and adds them to the growing protein
5
Q
Mutations
A
Any change in the DNA of a gene or chromosome
6
Q
Cancer
A
A disease in which cells grow and divide uncontrollably, damaging the parts of the body around them
7
Q
Tumor
A
A mass of abnormal cells that develops when cells divide and grow uncontrollably
8
Q
Chemotherapy
A
The use of drugs to treat a disease
