The gene responsible for Marfan syndrome encodes a protein associated with ____

a. heart muscle
b. connective tissue
c. fat tissue
d. red blood cells
e. nervous tissue


b

Biology & Microbiology

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The most common etiologic agent of lower respiratory tract infection among adults younger than 30 years of age is:

a. Chlamydophila pneumoniae. b. Mycoplasma pneumoniae. c. Streptococcus pneumoniae. d. Haemophilus influenzae.

Biology & Microbiology

Which blood type is the universal donor?

a. A+ b. B c. AB+ d. AB e. O

Biology & Microbiology

Which of the following can interfere with or delay wound healing?

a. Youth and good nutrition b. Immobilization of the area c. Adequate circulation d. Steroids

Biology & Microbiology

In regard to the baby's colorblindness, a sex-linked recessive trait, you explain that

A) colorblindness often appears randomly, even if neither parent is colorblind. B) the baby's father must have a recessive allele for colorblindness. C) since colorblindness is sex-linked, a son can inherit colorblindness if his mother has the recessive colorblindness allele. D) the eggs must have been accidentally switched, since males inherit sex-linked traits only from their fathers.

Biology & Microbiology