Can someone me pls

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1. There will be a 50% chance the child will have a (bb/ blue eyes) homozygous recessive phenotype. There is a 50/50 chance the recessive allele (b) will be given by either the mother or father.

2. If the child has blue eyes (bb) it is a homozygous recessive phenotype. Blue eyes can never be hetrozygous becuase in this scenario the heterozygous phenotype gives the child brown eyes.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme