Biology Flashcards
1
Q
What is mutation
A
Rare random changes that occur in the sequence of DNA in a gene or chromosome
2
Q
What are antibiotics
A
Powerful medicines that kill bacteria in the body
3
Q
What is genetic engineering
A
Enhancing the DNA of an organism to modify its characteristics
4
Q
Name an example of antibiotic
A
Penicillin
5
Q
What is extinction
A
The permanent loss of all members of a species
6
Q
Name one reason for extinction
A
Disease
Natural disasters
Lack of food
7
Q
What is evolution
A
Change in inherited characteristics of a population over time due to natural selection
8
Q
What is natural selection
A
A process where organisms that are better adapted to an environment will survive and reproduce
9
Q
What are 3 ways fossils are formed
A
Ice
Peat
Amber
