A Patient's Karyotype Indicates a Chromosome Number of 45

question 173

Multiple Choice

A patient's karyotype indicates a chromosome number of 45. This result is best explained by

• A) nondisjunction in either the sperm cell or oocyte.
• B) nondisjunction in both the sperm cell and oocyte.
• C) fertilization of a single oocyte by two sperm cells.
• D) a point mutation that caused one or more chromosomes to fuse.

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Definitions:

Center

The point that is equally distant from all points on the circumference of a circle or sphere.

Radius

The length measured from a circle's midpoint to any location along its outer edge.

Center

The middle point of a shape, object, or group of points, often equidistant from all outer edges or surfaces.

Radius

The distance from the center to the circumference of a circle or sphere.