1. KEY CONCEPT _____ encode _______ that produce a ______ _____ of _____.

2. The same ____ can have many ________.
A gene is a _____ of ____ that directs a cell to make a certain _______.
Each ____ has a _____, a _______ ________ on a pair of __________ chromosomes.

3. An ______ is any __________ ____ of a ____ occurring at a specific _____ on a chromosome.
Each ______ donates ___ ______ for every ____.
_________ describes ___ _______ that are the ____ at a specific _____.
____________ describes ___ ______ that are _______ at a specific _____.

4. Genes influence the ___________ of ______.
All of an __________ _____ _______ is called the ______.
A _______ refers to the makeup of a ______ ___ of _____. (____ ______ ______ designation)
A _________ is the ________ __________ of a _____.

5. _______ can be represented using _______.
A _______ ______ is expressed as a _________ when at least ___ ______ is ________.
A _________ _____ is expressed as a _______ only when ___ _____ are present.
________ alleles are represented by _________ letters; ________ alleles by ________ letters.

6. Both __________ _______ and ___________ _______ yield a _______ ________.
Most ______ occur in a _____ and do ___ ____ simple _______-_________ patterns.