Question 1:

A genetic mutation is:

Explanation: A genetic mutation is a change in the DNA sequence of a gene. It can involve a single nucleotide substitution, deletion, insertion, or rearrangement of genetic material. Therefore, option C is correct.

Question 2:

Which of the following is an example of a point mutation?

Explanation: A point mutation is a type of mutation that involves the substitution, insertion, or deletion of a single nucleotide in a gene. Therefore, option C is correct.

Question 3:

Which of the following is an example of a chromosomal mutation?

Explanation: A chromosomal mutation involves changes in the structure or number of chromosomes. Deletion of a segment of a chromosome is an example of a chromosomal mutation. Therefore, option C is correct.

Question 4:

Which of the following can lead to genetic variation in a population?

Explanation: Genetic mutations, genetic drift, and gene flow can all lead to genetic variation in a population. Therefore, option D is correct.

Question 5:

Which of the following is an example of a genetic mutation with beneficial effects?

Explanation: Antibiotic resistance in bacteria is an example of a genetic mutation with beneficial effects. It allows bacteria to survive and reproduce in the presence of antibiotics. Therefore, option C is correct.