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Chromosomal Abnormalities Quiz

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Questions and Answers

Which of the following is true about chromosomal abnormalities in newborns?

They are generally fatal

The most common are (45,X), trisomy 16, 21, and 22

The most common are trisomies of chromosome 21, 18, 13, or either of the sex chromosomes (correct)

They are different from those found in spontaneously aborted fetuses

What is the field of study that focuses on chromosomes and their abnormalities called?

Embryology

Genetics

Molecular Biology

Cytogenetics (correct)

What is the normal set of human chromosomes?

45 autosomal chromosomes + 1 sex chromosome

46 autosomal chromosomes + 1 sex chromosome

44 autosomal chromosomes + 2 sex chromosomes (correct)

46 autosomal chromosomes + 2 sex chromosomes

What is monosomy?

<p>Having only one of a particular type of chromosome</p> Signup and view all the answers

What is polyploidy?

<p>Having more than two sets of chromosomes</p> Signup and view all the answers