Each Investigation has vocabulary words that your child will be tested on each week. There are repeats in the Investigations. Please make sure your child studies the vocabulary words for the investigation we are working on each night until they have the test. 

Investigation 3

1. Allele: Different form of the same gene containing slightly different genetic information that encodes a slight difference in a trait

2. Biological Variation: Slight differences in an organism's traits compared to those of other members of the species that are considered normal.

3. Gene: A small portion of DNA that carries specific genetic information.

4. Incomplete Dominance: A type of inheritance in which both alleles are expressed. This results in a trait that is intermediate in appearance between what each allele determines.

5. Co-dominance: A type of inheritance in which both alleles of a gene are expressed. This results in a trait whose appearance results from the expression of both alleles independently with no mixing.

6. Population: A large group of the same species that live in the same area.

7. Polygenic: When a trait arises from the expression of multiple genes. An example is eye color.

8. Ratio: A group of numbers that compares the amounts or quantities of two different things.