Genetics Test Review

2. A segment of DNA that codes for a specific trait.
6. A two letter combination that expresses what traits are being carried on a gene.
8. Genetic factors and environmental factors can influence the _______ or development of an organism.
10. The physical expression of a trait.
11. The trait that covers up another trait. Represented by a capital letter.
12. Reproduction that requires only one parent.
13. Offspring created through asexual reproduction are _______ to the parent.
14. The trait covered up by another trait. Represented by a lower case letter.
16. When the genotype letters are both the same case.
17. These factors are due to changes in the surrounding area.
20. An advantage to asexual reproduction is needing only one parent and reproduction can occur at a ______ rate.
21. The best example of an organism that reproduces through binary fission.

1. The advantage to sexual reproduction is that the offspring differ from the parents. This is called what? (two words)
3. The behaviors that are determined and made after birth.
4. The term in sexual reproduction when two gametes are joined.
5. The structure that contains all the segments that determines what traits are passed to offspring.
7. Inherited traits are traits that are passed to offspring from____________.
9. Reproduction that requires two parents.
15. A type of asexual reproduction called vegetive reproduction is when a plant can grow a copy simply by cutting off a branch or ____ and planting it.
16. When the genotype letters are different. One capital and one lower case.
18. The process of a species getting stronger because weaker organisms don't reproduce. (2 words)
19. A type of asexual reproduction. It is when the organism simply splits in two. (two words)