Genetics Class: Chromosomal Abnormalities Quiz

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What is the chromosomal configuration of Turner syndrome?

XXX

XY

XO (correct)

XXY

Which of the following is a common characteristic of individuals with Turner syndrome?

Increased muscle mass

Tall stature

Infertility (correct)

Unique facial features

What does the term 'Trisomy X' refer to?

A male with a missing X chromosome

A male with an extra Y chromosome

A female with two X chromosomes

A female with three X chromosomes (correct)

How does Trisomy X generally affect an individual's physical attributes?

Results in no unique physical attributes Signup and view all the answers

What might be a consequence of having an extra X chromosome in females?

Difficulty getting pregnant Signup and view all the answers

What is the typical number of chromosomes in a somatic human cell?

46 chromosomes Signup and view all the answers

What chromosomal configuration represents a male?

XY Signup and view all the answers

What is the outcome of nondisjunction during cell division?

Aneuploidy Signup and view all the answers

Which of the following describes trisomy?

3 copies of the chromosome Signup and view all the answers

In which type of gamete production does nondisjunction occur more frequently?

Egg formation Signup and view all the answers

What is the primary characteristic of Klinefelter syndrome?

Characteristic female secondary sexual traits Signup and view all the answers

How is Turner syndrome characterized?

One normal X chromosome and absence of the second X chromosome Signup and view all the answers

Which of the following symptoms is NOT associated with Klinefelter syndrome?

Excessive testosterone levels Signup and view all the answers

What is a common physical trait among individuals with Klinefelter syndrome?

Developed breast tissue Signup and view all the answers

Which of the following describes a numerical chromosomal abnormality?

An atypical number of chromosomes in cells Signup and view all the answers

What type of chromosomal abnormality is Edwards Syndrome associated with?

Trisomy 18 Signup and view all the answers

Which of the following physical features is commonly associated with Edwards Syndrome?

Low-set ears Signup and view all the answers

What is a common outcome for infants with Patau Syndrome?

Usually die in infancy Signup and view all the answers

Patau Syndrome primarily affects which of the following systems?

Heart, eyes, brain, and spinal cord Signup and view all the answers

Which syndrome is characterized by severe problems with organs and severe intellectual disabilities?

Edwards Syndrome Signup and view all the answers

What is the definition of deletion in the context of chromosomal abnormalities?

A break in a chromosome resulting in the loss of an end piece or internal segment. Signup and view all the answers

Which of the following best describes duplication in chromosomal abnormalities?

A chromosome segment is repeated, resulting in extra alleles for a trait. Signup and view all the answers

What characterizes a translocation in structural chromosomal abnormalities?

An exchange of chromosome segments between two non-homologous chromosomes. Signup and view all the answers

Which syndrome is caused by a deletion on chromosome 5?

Cri du chat syndrome. Signup and view all the answers

What is a common physical characteristic of boys with Jacobs syndrome (XYY)?

Chronic acne Signup and view all the answers

Which condition is associated with the presence of an extra chromosome 21?

Down syndrome Signup and view all the answers

Which of the following abnormalities involves reversing a segment of a chromosome?

Inversion. Signup and view all the answers

What mental health issue can be associated with Jacobs syndrome (XYY)?

Learning disabilities Signup and view all the answers

What percentage of children with Down syndrome exhibit congenital heart problems?

75% Signup and view all the answers

Which statement about the IQ range for XYY individuals is true?

It is the same as that of XY men. Signup and view all the answers

What type of chromosomal abnormality is primarily associated with Translocation Down syndrome?

Translocation of chromosome 21 to chromosome 14 Signup and view all the answers

Which of the following is a characteristic feature of Williams syndrome?

Deletion of part of chromosome 7 Signup and view all the answers

What percentage of individuals with Down syndrome have Translocation Down syndrome?

5% Signup and view all the answers

What is one of the cognitive characteristics commonly associated with Williams syndrome?

Excellent musical abilities Signup and view all the answers

Which physical feature is characteristic of individuals with Williams syndrome?

Turned-up nose Signup and view all the answers