What Does a Half-Shaded Circle Represent on a Pedigree Chart

question 43

Multiple Choice

What does a half-shaded circle represent on a pedigree chart?

• A) a female carrier
• B) a female who does not have an allele for the genetic disorder represented
• C) a male who is affected by the genetic disorder represented
• D) a male carrier

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Definitions:

-rrhea

A suffix used in medical terminology to denote a discharge or flow of substances, such as diarrhea.

-lysis

A suffix used in biology and medicine that denotes the breaking down or destruction of cells, substances, or compounds.

-penia

A suffix used in medical terms to denote a deficiency or lack of something.

Suffix

A letter or group of letters added at the end of a word to form a derivative or to alter its meaning.