Cystic fibrosis is caused by a(n):
A) sex-linked abnormality.
B) abnormality in the 21st pair of chromosomes.
C) recessive gene.
D) single segment found only on the Y chromosome.
Question 2Visual-spatial ability refers to the ability to visualize objects or shapes and to mentally manipulate and rotate them.
Indicate whether the statement is true or false
Question 3Which of the following statements is true about Tay-Sachs disease?
A) it is most commonly found among children in Jewish families of Eastern European background.
B) Children who have this disease suffer from excessive production of mucus in the lungs and pancreas.
C) It is most commonly found among children in Asian American families.
D) Children who have this disease suffer from muscular dystrophy characterized by a weakening of the muscles.
Question 4According to research, Girls in the United States are more likely than boys to have reading problems.
Indicate whether the statement is true or false
Question 5Which of the following illnesses causes a degeneration of the central nervous system?
A) Tay-Sachs disease
B) Cystic fibrosis
C) Turner syndrome
D) Klinefelter syndrome
Question 6The personal fable is connected with behaviors such as being reserved and avoiding risks.
Indicate whether the statement is true or false
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