genetic variation and mutations
What is a mutation?
A change in an organism's DNA
Which of the following is an example of genetic variation?
Having different colored eyes
What causes genetic mutations?
Exposure to radiation
Which type of mutation is most likely to be harmful?
Deletion of a gene
What is the purpose of genetic variation in a population?
To increase the chances of survival
Which of the following is an example of a genetic variation that provides an advantage?
Resistance to a disease
How do mutations contribute to evolution?
By introducing new genetic variations
Which term is used to describe a change in a single nucleotide base pair?
Point mutation
What is the difference between a gene mutation and a chromosomal mutation?
Gene mutation affects a single gene, while chromosomal mutation affects a whole chromosome
Which type of mutation results in a change in the order of genes in a chromosome?
Inversion mutation