Author Question: Which of the following disorders is manifested primarily in males? a. Cystic fibrosis b. ... (Read 120 times)

tingc95 · **on:** Jun 25, 2018

Which of the following disorders is manifested primarily in males?

a. Cystic fibrosis
b. Neurofibromatosis
c. Muscular dystrophy
d. Klinefelter syndrome

Question 2

When the nurse is teaching the staff about X-linked recessive disorders, which information should the nurse include? (select all that apply)

a. The trait is seen much more often in fe-males than in males.
b. The trait is never transmitted from father to son.
c. The gene can be transmitted through a se-ries of carrier females.
d. The gene is passed from an affected father to all his daughters.
e. The trait never skips generations.

ntsoane kedibone · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

ANS: C
Muscular dystrophy is manifested primarily in males. Cystic fibrosis, neurofibromatosis, and Klinefelter syndrome are manifested in both males and females.

Answer to Question 2

ANS: B, C, D
The principles of X-linked recessive inheritance include: the trait is seen much more often in males than in females; the trait is never transmitted from father to son; the gene can be transmit-ted through a series of carrier females; the gene is passed from an affected father to all his daughters, who, as phenotypically normal carriers, transmit it to approximately half their sons, who are affected. X-linked recessive disorders can skip generations since it is a one in four chance.