A polypeptide is a chain of amino acids. The completed polypeptide chains come together to form proteins, so be careful not to get them mixed up!
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The enzyme that would be most important for digesting a skinless chicken breast would be a PEPTIDASE.
A skinless chicken breast is a proteinous food and peptidases are enzymes which break down proteins by hydrolysis of the peptide bonds which joined the amino acids of proteins together.
The answer will be B. It is common sense
The parents both need to be heterozygous, meaning they have to have one dominant and one recessive allele.