The Punnet Square Flashcards
genetic variation
a difference in inherited characteristics between parent and offspring
inherited trait
a characteristic that is passed from parent to offspring
prokaryotic organism
a simple one-celled organism, that lacks a nucleus and other membrane-bound organelles; typical of bacteria cells.
eukaryotic organism
a cell with a nucleus and membrane-bound organelles; typical of plant and animal cells.
What’s the percentage of alleles you receive from your mom and dad?
Mom - 50%
Dad - 50%
Because each ____ is present in two copies, each ____ is present in two copies
Chromosome, gene
alleles
variations of a specific gene
recessive alleles
alleles that are masked
Which letter size represents dominant and recessive alleles?
Dominant - Upper Case Letter
Recessive - Lower Case Letter
phenotype
trait that is physically shown; final outward appearance of the trait
How many alleles, or genes, does an offspring receive in total?
2
genotype
a way to represent both alleles a person has inherited for a certain trait
The dominant allele, B, represents brown hair. The revcessive allele, b, represents blond hair. What hair color would the offspring have if it was BB, Bb, or bb?
BB - Brown hair
Bb - Brown hair
bb - Blond hair
What are Punnet squares used for?
They are used to demonstrate all the possible variations of a certain trait.
A capital letter is used to represent the ____ allele in a gene pair.
dominant
