Heredity

Page
1

Slide 1

Heredity

Slide 2

Vocabulary

Get the definitions for the following terms from your text:

gene

genotype genome phenotype allele

homozygous heterozygous dominant recessive

Slide 3

Law of Segregation

Organisms inherit two copies of each gene, one from each parent

Organisms donate only one copy of each gene in their gametes

Two copies of each gene segregate, or separate, during gamete formation

Slide 4

Segregation and Inheritance

Slide 5

Traits Studied by Mendel

Slide 6

Flower Color

In pea plants:

The allele for violet flower color

(B) is dominant

The allele for white flower color

(b) is recessive

Slide 7

Genotype vs. Phenotype

Slide 8

A Punnett Square

Slide 9

CF - An Autosomal Recessive Trait

Slide 10

Punnett Square

G

G

g

g

Carrier mother

Carrier

father

GG

Gg

Gg

gg

25%

50%

50%

25%

Child with CF

Slide 11

Autosomal Recessive: A Pedigree

Slide 12

Inheritance of an Autosomal Dominant Trait

Slide 13

Incomplete Dominance