Most genetic variation in a population is generated by
mutation.
gene flow.
genetic drift.
none of the above

Mutation.

Explanation:

Genetic variation in a population is caused by Mutation , recombination between homologous chromosomes (during meiosis), random fertilization and random mating.

Mutation: Mutation is a change that occur in our nucleotide sequences of the genome of the organism, either due to the results of the environmental factors ( UV lights) or mistakes when the DNA is copied. There are 3 types of DNA mutation present :

1) Deletions

2) Insertions

3) Base Substitutions

yes i have all the correct answers

1. c 6. b. 11. c

2. a 7. d. 12. d

3. c 8. b. 13. c

4. d 9. c. 14. d

5. c 10. d. 15. a

16. d. 21. a

17. d.

18. a. 22-30 you must do on

19. d. your own

20. d.