A Punnett square is a square diagram used to predict genotypes in a cross or breeding experiment.
Wow!
Every single organism has 2 alleles.
An allele is one of two or more different versions of a gene that are found at the same location on a chromosome due to mutation.
After 2 alleles are combined, what happens?
So why does Chanel wear glasses?
A genotype refers to a pair of alleles. There are three possible genotypes: AA, Aa, and aa.
A phenotype is an organism's set of observable features or qualities. Height, appearance, hair color, skin color, and etc.
If an organism has two copies of the same dominant allele, it is homozygous dominant, and if it has two copies of the same recessive gene, it is homozygous recessive.
What if one allele is dominant and the other is recessive?
Although poor vision is neither a dominant nor a recessive trait, it does run in families.
Heterozynous means that you have two different alleles of a gene.
Aa = Heterozynous(one uppercase & one lowercase)
How can we see what traits we inherited from our family members?
I have one allele for blue eyes from my mom and one allele for brown hair from my dad. The two different alleles affect what I look like but it depends on which trait is more dominant.
A trait is an organism's unique characteristic. Traits can be determined by genes.
Neither of my parents wear glasses but after looking at a pedigree chart, I found out I must get my eyesight from my grandparents!
A pedigree chart is a genetic representation of a family tree that shows how a trait or disease is passed down through generations.