Experiments of Gregor Mendel which laid basis for modern genetics

1. MENDELIAN GENETICS
Aleena Elizabeth Cyril Esaiah 43:1

2. Gregor Johann Mendel
Father of Genetics
Aleena Elizabeth Cyril Esaiah 43:1

3. Mendel’s Experiment
Aleena Elizabeth Cyril Esaiah 43:1

4. Mendel’s success & Advantages with the
pea plant
• Peas grow relatively rapidly, completing an entire generation in a single growing
season.
• Pea plants also produce many offspring—their seeds—which allowed mendel to
detect meaningful mathematical ratios in the traits that he observed in the
progeny
• He avoided characteristics that display a range of variation; instead, he focused his
attention on those that exist in two easily differentiated forms
Aleena Elizabeth Cyril Esaiah 43:1

5. Mendel’s Laws of Inheritance
Law of dominance
States that in a pair of
contrasting alleles, a single
allele gets expressed in the
filial generation and it is
called dominant trait, while
the one being masked is
called recessive trait.
01
Law of Segregation/ Law of
Purity of gametes
states that each individual diploid
organism possesses two alleles
for any particular characteristic.
These two alleles segregate
(separate) when gametes are
formed, and one allele goes into
each gamete. Furthermore, the
two alleles segregate into
gametes in equal proportions.
02
Law of Independent
assortment
States that in two or more
pairs of contrasting
characters when involved
in crossing each allele
separates individually and
acts independently
03
Aleena Elizabeth Cyril Esaiah 43:1