Pathogenic Streptococci of the Upper Respiratory Tract (Such as S

question 60

Multiple Choice

Pathogenic streptococci of the upper respiratory tract (such as S. pyogenes) exhibit which of the following types of hemolysis?

• A) no hemolysis
• B) alpha
• C) beta
• D) Both A and B are correct.
• E) Both A and C are correct.

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Definitions:

Albinism

A genetic condition characterized by the absence of melanin pigment in the skin, hair, and eyes, resulting in light coloring and increased sensitivity to sunlight.

Recessive

A type of gene that generally does not manifest in the presence of a dominant gene; it requires two copies (one from each parent) for the trait to be expressed.

Homozygous

Having two identical alleles for a particular gene or genes, contributing to specific traits or conditions.

Recessive Inheritance

A genetic phenomenon where a trait is expressed only when two copies of a recessive allele are present, one from each parent.