MDCAT Biology MCQ #4497

A genetic test reveals that a couple's child has a chromosomal abnormality. What is the term for the presence of an extra copy of a chromosome?

MDCAT Biology MCQ #4497

  1. Question 1

    Q1. A genetic test reveals that a couple's child has a chromosomal abnormality. What is the term for the presence of an extra copy of a chromosome?

    • A) Aneuploidy
    • B) Polyploidy
    • C) Triploidy
    • D) Trisomy

    Answer: Trisomy

    Explanation: Trisomy refers to the presence of an extra chromosome, such as in Down syndrome.