Apunnett square is drawn for parents, one of whom has phenylketonuria, a recessive genetic disorder, and the other who is a carrier of the disease. what are the odds of their children having phenylketonuria?

a.) 0%
b.) 25%
c.) 50%
d.) 75%
e.)100%

The correct answer would be option C. 50%

Explanation:

Phenylketonuria is an autosomal recessive genetic disorder. Phenylketonuria occurs if a person has two recessive alleles (p) for for PAH (phenylalanine hydroxylase) gene.

If the person has the heterozygous condition (Pp) for PAH gene, than he will be considered as a carrier for the disorder but if he has two dominant alleles (PP) of the disorder, he will be normal.

The child of parents, one with phenylketonuria (pp) and other who is carrier (Pp) is most likely to have 50% chances to having phenylketonuria.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

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what the squwock

explanation: