2. He was known as “Father of
Genetics”
He discovered how traits were
inherited
Genetics: it is the study of
heredity
Heredity: the passing over
traits from parent to offspring

3. Mendel did his study on pea
plants
Pea plants have many
traits(tall/short, purple
flowers/ white flowers)
Pea plants can be self-
fertilised or cross fertilised

4. 1. True-breeding: These plants
always create plants that
look like themselves
2. Hybrid: Offspring of true-
breeding plants
 Tall x short= Hybrid

5. Some traits are dominant
over others
Tall x Short= all tall
offspring(hybrid)
Tall is the dominant trait
Short is recessive

6. Mendel discovered that each trait
is controlled by two factors
(alleles)
Genotype: what genes, letters,
the organism has(TT, Tt,tt)
Phenotype: what it looks like (tall
or short)
Genes: factors that determine
your trait

7. Explaining the cross
When a parent makes sperm
or egg, their genes separate
(principle of segregation)
The gametes (egg or sperm)
contain either a T allele
(tall) or t allele.

10. 1. A one eyed purple people
eater is crossed with a two
eyes. Which one is
dominant?
2. If you use the letter E for
this gene. What is the
offspring?

11. 3. Are these offspring the f1 or
f2 generation?
4. If you crossed the offspring
with each other, how many
of the new offspring would
you expect to have two
eyes?