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If there is a 100% chance that the children produced by two parents will have the recessive trait of BLUE eyes, what MUST the genotypes of the parents be?
Homozygous recessive (bb & bb)
On a Punnett square, who is represented by the genotypes INSIDE the boxes?
Possible offspring / children
On a Punnett square, who is represented by the genotypes OUTSIDE the box?
the parents
This allele is only expressed in the homozygous form. Two alleles must be present for it to show up.
recessive
This allele always takes over and is expressed in the offspring
dominant
This tool is used to predict the possible genotypes and phenotypes of the offspring of two parents
Punnett square
When an organism has two different alleles it is called
heterozygous / hybrid
When an organism has two identical alleles it is called
homozygous / purebred
He is referred to as the "Father of Genetics"
Gregor Mendel
The genetic makeup of an organism is called its
genotype
The physical appearance of an organism is called its
phenotype