Which statement is TRUE about Marfan syndrome?
a. The elasticity of the aorta is affected.
b. The condition affects the shape and mobility of fingers.
c. Some affected individuals are of normal height.
d. One in 500 people are affected.
e. Marfan syndrome is easily diagnosed.
ANSWER: a
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About 250 million years ago Earth’s continents merged into one supercontinent called ____
a. Nazca b. Eurasia c. Laurasia d. Gondwana e. Pangaea
Substrates for biosynthesis are generated from catabolic reactions microbes use the same enzymes or different ones?
What will be an ideal response?
Cl + e- ? Cl- is an example of a:
A. ionization. B. oxidation. C. polymerization. D. reduction.
Chargaff's rules for the pairing of nitrogen bases is
A. A = T and G = C. B. A+T = G+C. C. A = C and G = T. D. A = G and C = T.