Judith Cates, Profiled in the Feature Box, Is Unusual Because

question 60

Multiple Choice

Judith Cates, profiled in the feature box, is unusual because:

• A)she had twins while in her late 50s.
• B)she delivered sextuplets.
• C)she delivered a baby while undergoing a sex change operation to be a man.
• D)she did not know she was pregnant until she delivered a baby.
• E)she had a baby at the age of 11.

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Definitions:

Secondary Structure

The local folded structures that form within a polypeptide due to interactions between atoms in the backbone, typically alpha-helices and beta-sheets.

Quaternary Structure

The level of protein structure involving the arrangement and interaction of multiple polypeptide chains.

Disulfide Linkages

Chemical bonds formed between sulfur atoms of two amino acid residues, playing a critical role in the three-dimensional structure of proteins.

Hydrophobic Attractions

The tendency of nonpolar substances to aggregate in aqueous solutions and avoid water.