Vocabulary
Who was the father of genetics?
Gregor Mendel
The chance something will happen
How many boxes are there in a Punnett square?
4
Cross a hybrid black hair dog with a purebred black hair dog. Black is dominant over blonde.
Bb x BB = 2BB and 2Bb
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
Green is dominant over yellow. What are the possible genotypes for each?
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 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.
Tall- 100%