Transcript P Generation

Heredity

The passing of traits from parents to their
offspring
Genetics

The study of heredity
Self-Pollination

The movement of pollen from the male sex
organ to the female sex organs of flowers on
the same plant
P Generation

The Parent generation – pure for certain traits
Cross-Pollination

The movement of pollen from the male sex
organs to the female sex organs of flowers on
different plants
F1 Generation

The first generation after the P Generation
Gregor Mendel

Made important discoveries about heredity

Studied pea plants and their seeds
Punnett Square

A model used to represent crosses between
organisms
Gene

The information a parent passes to its offspring
for a trait
Recessive Gene

A gene that is hidden by a dominant gene

Represented by a lowercase letter
Dominant Gene

The gene that shows up in an organism

Represented by a capital letter
Genotype

An organism’s combination of genes for a trait
Phenotype

An organism’s appearance as a result of its
genes

What you physically see
F2 Generation

The result of crossing the F1 generation

the 3rd group
Thomas Morgan

50 years after Mendel

Used fruit flies to learn about chromosomes
and genes
Sex-Linked Traits

A trait that is determined by an organism’s sex
chromosomes
Practice….