Two Parents Who Do Not Have Sickle Cell Anemia Have

question 24

Multiple Choice

Two parents who do not have sickle cell anemia have a child that has the disease.The parents are both:

• A)homozygous for the sickle cell allele.
• B)heterozygous for the sickle cell allele.
• C)homozygous for the normal allele.
• D)epistatic for the sickle cell allele.

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Definitions:

Acid

A substance that donates hydrogen ions or protons and accepts electrons, often associated with a sour taste and capable of turning blue litmus paper red.

Prions

Infectious agents composed of protein in a misfolded form, which can cause neurodegenerative diseases.

Neurodegenerative Diseases

Disorders characterized by the progressive loss of structure or function of neurons, including diseases like Alzheimer's, Parkinson's, and ALS.

Amino Acid Sequence

The order in which amino acids are linked together to form a protein, determining the protein's structure and function.