Title: Gregor Mendel - father of genetics!
1Gregor Mendel- father of genetics!
- Austrian Monk
- tended to the garden in the monastery
- now it is located in CZ
2Performed Experiments Using garden peas because
they.
- grow quickly
- are hardy plants
- self-pollinate
- ? pure for each trait
3Parental Generation or P1 generation
All the offspring were tall ????? Called first
filial or F1 generation
4He then crossed two offspring from the F1
generation
3 tall offspring to each 1 short offspring
31 called F2 generation second filial generation
Tall F1
X
Tall F1
5Explanation of his Results
Dominant trait T or tall Recessive trait t
or short
trait is size that is the characteristic
allele is variation of the trait ex. Tall or
short
6Pivotal Concept that Mendel hypothesized..
- Genes are always in pairs
one half of the pair comes from the father
the other half of the pair comes from the mother
7P1 generation TT x tt explained using punnett
squares
- Genotype -
- gene combination of the children
- look at ancestors
- Phenotype
- what is looks like
- use your eyes to detect
8He then crosses 2 F1 ? Tt x Tt
Genotypes - TT, tt, Tt
Phenotypes - 3 tall 1 short
F2 Monohybrid Phenotypic Ratio
9Terms to Know !!!!
- Trait - characteristic
- allele - variation of a trait
- homozygous - 2 genes in the gene pair are the
same - heterozygous - 2 genes in the pair are different
- Purebred - homozygous
- hybrid - heterozygus
- genotype - gene combination
- phenotype - what it looks like