Medel and Heredily Flashcards
Who was considered the pioneer /father of genetics
Gregor Mendel
Mendel studied how many traits of pea pod
7 traits
P generations
Mendel crossed purebred plants with each other
F1 generation
Mendel observer that all of the offspring were purple flowers and that none were white
F2 generation
Mendel the crossed 2 of the F1 offspring. These offsprings are known as the F2 generation.
Mendel’s Hypothesis
1) organisms have 2 factors that describe each trait
2) Inherit one allele front ather and other mother
Alleles
Different forms of the same gene for a specific trait
Dominant
Trait that is expressed in the offspring .
Recessive
Trait is only exhibit if dominant trait is absent
Phenotype
What the organism looks like (physical appearance )
Genotype
Genetic makeup of an organism ( we cannot see this )
What are the two forms of genotypes
Homozygous
Heterozygous
Homozygous
Both identical alleles are either dominant or recessive
Heterozygous
Different alleles dominant and one recessive
Some alleles are dominant ( trait is expressed in the offspring ) and other alleles are recessive (trait is only exhibit if dominant is absent )
Mendel’s Law of Dominance