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An anomaly in which there is one extra, or one fewer chromosome than normal is called: A) Trisomy B) Monosomy C) Aneuploidy D) Karyotype E) Translocation

Question

An anomaly in which there is one extra, or one fewer chromosome than normal is called:

A) Trisomy
B) Monosomy
C) Aneuploidy
D) Karyotype
E) Translocation

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Solution

The correct answer is C) Aneuploidy. This term refers to a condition in which there is an abnormal number of chromosomes, either one extra or one fewer than normal.

Here's a step-by-step explanation:

A) Trisomy refers specifically to the condition where there is one extra chromosome, not one fewer.

B) Monosomy refers specifically to the condition where there is one fewer chromosome, not one extra.

C) Aneuploidy is the correct answer because it refers to any condition where there is an abnormal number of chromosomes, either one extra or one fewer.

D) Karyotype refers to the number and visual appearance of the chromosomes in the cell nuclei of an organism or species.

E) Translocation refers to a chromosome abnormality caused by rearrangement of parts between nonhomologous chromosomes.

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