a situation in which one Allele is not completely dominant over the other allele the process by which organisms better suited to their environment survive and reproduce change over time A chart that shows all the possible combinations of alleles that can result from a genetic cross A diagram that shows the occurrence of a genetic trait in several generations of a family

1. incomplete dominance

a situation in which one Allele is not completely dominant over the other allele

2. Natural selection

the process by which organisms better suited to their environment survive and reproduce

3. evolution

change over time

4. punnett square

A chart that shows all the possible combinations of alleles that can result from a genetic cross

5. pedigree

A diagram that shows the occurrence of a genetic trait in several generations of a family.

6. mutation

A change in a gene or chromosome.

7. sex-linked genes

a gene that is carried on the X or Y chromosome

8. multiple alleles

three or more alleles of the same gene

9. polygenic inheritance

inheritance in which traits are governed by more than one gene