Vocabulary
Who was the father of genetics?
Gregor Mendel
The chance something will happen
How many boxes are there in a Punnett square?
4
What is genotype of the parents?
Cross a hybrid or heterozygous black hair dog with a purebred homozygous black hair dog. Black is dominant over blonde.
Bb x BB
What is the expressed trait?
Dominant
When an organism has both genes alike
Purebred or homozygous
The actual gene makeup of an organism is called the
genotype
Use the letter g to represent the genotype for each color.
Green is dominant over yellow.
GG or Gg- Green
gg-Yellow
What is passed down from parents to offspring?
genes
When an organism has two different genes?
hybrid or heterozygous
The physical appearance of an organism
Complete the Punnett square for Gg x GG
show on board!
What does recessive mean?
The unexpressed or weaker trait
The physical characteristics of an organism
Traits
The genotype percentage of the cross: DD x Dd is...
DD- 50%
Dd-50%
What does a hybrid or heterozygous genotype look like?
Capital Letter with a lowercase letter (Dd, Gg, Bb)
What is the study of heredity
Genetics
What do we use to show possible gene combinations?
Punnett squares
The phenotype percentage for TT x tt where T is Tall and t is short is?
Tall- 100%