1. Terms
MT:
Allele Frequency

2. Frequency Def: how often something occurs Examples:
Alice bounces the basketball 60 times in one minute. Frequency = ?
Which has a higher frequency in our classroom – blonde hair or dark hair?
60 bounces/minute
Dark hair has a higher frequency

3. Allele
Def: A type of a gene that is at a specific spot on a chromosome
Have a pair: 1 from mom, 1 from dad
From mom
From dad

4. Gene
Def: Piece of DNA that codes for a protein (not same as allele)

5. Mutation Def: A change in DNA sequence Normal Chromosome
Duplication in normal chromosome
Mutant Chromosome

6. Lethal
Def: Deadly; can kill an organism

7. Gene Pool
All of the DNA (genes) in a population of organisms that sexually reproduce in an area
Ex: all of the human
genes in the world
or all of the human
genes in California

8. Phenotype
An organism's physical appearance based on an interaction of its genes and environment
Ex: fur color, eye color, # toes, hair texture, speed, intelligence

9. Genotype The genes (DNA) an organism has
Ex: BB or Bb or bb for eye color

10. Variation
Def: A difference from others

11. Natural Selection
Process in nature in which the most fit for their environment have a higher chance of surviving and reproducing
Which mouse is most fit?
Why?