____________ is the branch of biology concerned with the study of ways cells and organisms store, use, and pass along genetic information.

2.

The observable appearance of an organism consists of thousands of characteristics collectively called the ___________

3.

____________ methods must be used to find and analyze the end products of gene combinations

4.

____________ are a class of organic molecules that serve as pigments in the color of fruit fly eyes.

5.

The biochemical tool we used to separate the pteridines was _________ ___________

6.

In the corn lab we examined the ________ generation

7.

A _________ cross is the study of two genes at the same time.

8.

A dihybrid cross is the study of ______ ______ at once

9.

Genes may also interact with eachother in some way which is called _________

10.

F2 ratio of a dominant trait over a recessive trait will always be a ____ to ____ ratio

11.

A single sperm cell and a single egg cell join to make a _________

12.

If two alleles are present exactly _______ ______ of the gametes that are made should carry one allele and half should carry the other allele. This is the Law of __________ __ ______

13.

The chance of two independent things happening together is the _______ of the chance of each of them happening separately. This is the _____ rule.

14.

The chance of the same outcome by two different means is the ____ of the chance of each way happening separately. this is the ____ rule

15.

In a dihybrid cross, if genes are assorting independently, there should be a ratio of alleles of __ to __ to __ to ___

16.

If the probability that the null hypothesis is true is less than .05, we can _____ the null hypothesis

17.

________ are forms of genes that are different forms of the same gene.

18.

There are 2 _________ for any particular chromosome

19.

Gametes contain only ____ chromosome(s) from each pair

20.

The only way to get a 9:3:3:1 ratio is if there are alleles on two _______ chromosomes and each parents can only contribute _____ allele