Genetics

genetics - branch of biology that deals with heredity and genetic variation.
heredity - passing of triats from parents to their offspring.
we have character and traits for example hair color is character and black/brown is the trait.
Gregor Johann Mendel - father of genetics.
dominant gene 'AA' or 'Aa' (heterozygous/homozygous)
recessive gene 'aa' (homozygous)
homozygous - both alleles are the same
heterozygous -both alleles are different.
diploid -organisms that have to sets of chromosomes
pure lines - are the descendants obtained after inbreeding for several generations.
Inbreedings is a process of crossing individuals from the same family.
phenotype - features that can be seen or observed by us externally. eg tall height.
Genotype -genetic make up that can be observed eg. Tt or TT.

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