Mendelian Genetics

Refers to all the biological processes involved in the transmission of traits or characteristics from parent to offspring

• HEREDITY

• GENETICS

• Gregor Mendel

• Martin Luther

• Albert Einstein

A field of BIOLOGY that studies Heredity and the factors that affect heredity

• HEREDITY

• GENETICS

• Gregor Mendel

• Martin Luther

• Albert Einstein

• Father of Genetics • An Austrian monk at the distinguished monastery of St. Thomas in the Czech Republic • Methodical investigation on heredity – Garden Peas • Carried out his famous experiments on crosses of garden peas (Pisum sativum) from 1856 to 1863. • Discovered “GENES” which determine the traits that an individual inherits.

• HEREDITY

• GENETICS

• Gregor Mendel

• Martin Luther

• Albert Einstein

MENDEL AND HIS GARDEN PEAS:
Mendel chose this plant species for several reasons:
_____ garden peas easily grow, and they produce a large number of offspring.

• First

• Second

• Third

_____, garden peas are bisexual plants; their male and female reproductive structures are located in the same flower, and they self-fertilize.

• First

• Second

• Third

The crossing of the F, generations. Finally, Mendel pollinated the F1, generation. He called this the P1, or second parental generation. Mendel gathered and planted the seeds. When the seeds germinated and produced flowers, he noticed that 75% of the garden peas had purple-colored flowers and 25% had white-colored flowers. He labeled this second set of offspring as the F1, or second filial generation. The white-colored flowers that did not appear in the F1, generation appeared in a ratio of 3:1. This third phase can be summarized as:

P2 Purple-colored flower x purple-colored flower

F2 75% purple-colored flower and 25% white-colored flower Mendelian Principles or 3:1

• First

• Second

• Third

Mendel conducted his experiments in the following manner:
Production of the pure breeding strains of pea plants. He allowed several populations of garden pea plants to self-pollinate for many generations until he was able to gather seeds that produced only one particular trait-garden peas that produce only whitecolored petals and garden peas that produce only purple-colored petals.

• First

• Second

• parental generation

• Third

• second parental generation

Mendel conducted his experiments in the following manner:
The crossing of two different varieties of pure breeding strains. He took pollens from a purple-colored flower and transferred them into the stigma of a white-colored flower.

• First

• Second

• parental generation

• Third

• second parental generation

Mendel conducted his experiments in the following manner:
He called these two varieties of garden peas the P1, or first _____. When the garden peas produced seeds, he gathered and planted them separately. Mendel found out that all the garden peas produced purple- colored flowers. He labeled the first set of offspring as F1, or the first filial generation. The second phase of Mendel's work can be summarized as:
P1 Purple-colored flower x white colored flower
F1 All purple-colored flower

• First

• Second

• parental generation

• Third

• second parental generation

The crossing of the F, generations. Finally, Mendel pollinated the F1, generation.

• First

• Second

• parental generation

• Third

• second parental generation