Vocab
Molecules that contain nitrogen
Nitrogen Bases
type of mutation where one base pair is switched for another
Substitution
Mutations can cause ____.
Cancer
Chromosomes are mostly made up DNA.
True
How do mutations lead to cancer?
They disrupt the cell cycle and cause cells to divide uncontrollably.
the process in which in identical copy of DNA is formed for a new cell
DNA Replication
a disease in which cells grow and divide uncontrollably, damaging parts of the body around them.
Cancer
Cancer leads to a cell mass called ____.
Tumor
Mutations are sometimes helpful to the organism.
True
What are two ways the risk of some types of cancer can be reduced?
Not smoking, avoiding UV Rays
any change in the DNA of a gene or chromosome
the use of drugs to treat a disease
Chemotherapy
Cancer can be treated by surgery, radiation, and ___.
Chemotherapy
Cancer is a disease in which cells divide slowly.
False. Uncontrollably
How does cancer spread from a tumor to other parts of the body?
They break off and enter the bloodstream.
a type of mutation when one base pair is added
addition
a mass of abnormal cells that develop when the cells divide and grow uncontrollably
Tumor
Chromosomes are mostly made up of ___.
DNA
Cancer causes the growth of tumors.
True
What is the full name of DNA?
Deoxyribonucleic Acid
type of mutation where one base pair is removed
Deletion
Type of mutation where it increases the animals chances of survival
Helpful Mutation
Each gene is located at a specific place on a ___.
Chromosome
The genetic code is determined by the sizes of the nitrogen bases.
False. Order.
How are DNA, genes, and Chromosomes related?
Chromosomes carry genes which are made up of DNA.