Chromosomes Abnormalities

Question 1

A sex chromosome abnormality in which a male has a tall stature; tendency toward low IQ, especially verbal

Answer 1

XYY syndrome/ Jacobs syndrome

Question 2

A sex chromosome abnormality in which a female has a normal appearance, menstrual irregularities, learning disorders, intellectual disability

Answer 2

XXX (triple X)

Question 3

A sex chromosome abnormality in which a Male is sterility, underdeveloped secondary sex characteristics, small testes, learning disorders

Answer 3

XXY (Klinefelter)

Question 4

A sex chromosome abnormality in which
a Female has short stature, webbed necks, impaired spatial abilities, no menstruation, infertility, underdeveloped sex organs

Answer 4

XO/Turner

Question 5

Minor-to-severe intellectual disability is more severe in males; delayed speech and motor development, hyperactivity; the most common inherited form of intellectual disability

Answer 5

Fragile X

Question 6

What is the other term for Down syndrome?

Answer 6

trisomy-21.

Question 7

A chromosomal disorder characterized by moderate-to-severe intellectual disability and by such physical signs as a down-ward-sloping skin fold at the inner corners of the eyes. A

Answer 7

Down Syndrome

Question 8

The condition is also called trisomy-21 because it is characterized in more than 90 percent of cases by an extra 21st chromosome.

Answer 8

Down Syndrome

Question 9

The brains of children with Down syndrome appear nearly normal at birth but shrink in volume by young adulthood, particularly in the _________ and ___________

Answer 9

hippocampal area and prefrontal cortex,