Study of heredity
Genetics
Traits that show
Dominant
Tool to predict traits
punnet squares
Circle represents
What is the name of the man of the "Father of Genetics"
Gregor Mendel
•Passing traits from parents
•Heredity
Trait that is hidden
Tt means this
Heterozygous
Square represents
male
What plants did Mendel use?
Pea Plant
•Physical appearance
•Phenotype
Written with capital letters
Dominant
TT or tt means this
homozygous
Shaded means
Has the trait
•Observed this ratio
3:1
•Genetic makeup
Genotype
Written in lower case letters
Recessive
•Ratio of Tt x Tt
3:1
•Trait shown but parents don’t have it
recessive
•Traits passed as these
•Two different alleles
•Heterozygous
Can skip generations
Recessive
% recessive in Tt x Tt
25%
•Parents genotype in that case
•Trait shown but parents don’t have it
•Tt and Tt
•One allele from each...
Parent