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 the units of heredity?
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 is called that shows possible gene combination?
Punnett squares
The phenotype percentage for TT x tt where T is Tall and t is short is?
Tall- 100%