An autoimmune disorder in which an immune response targets Type V collagen fibers is most likely to affect the

A) skin.
B) heart.
C) lungs.
D) stomach.
E) tongue.


Answer: A

Biology & Microbiology

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Which of the following were used in studies to test and support the hypothesis that high pressure forces phloem sap to flow?

a. radiolabelled sugars b. radiolabelled hormones c. aphids d. vacuum chambers

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The activity of Rab GTPases are regulated by all of the following classes of proteins except

a. GAP (GTPase activating protein). b. GDI (GDP-dissociation inhibitor). c. GEF (Guanine nucleotide exchange factor). d. GTF (Guanine nucleotide trypolysis factor).

Biology & Microbiology

Archaeopteryx is believed to be the transition fossil between reptiles and birds because Archaeopteryx had feathers and

A. scales. B. a pointed, elongated mouth that could evolve into a beak. C. a long reptilian tail. D. a tail similar to modern birds.

Biology & Microbiology

ddATP, ddTTP, ddCTP, and ddGTP are labeled with red, green, yellow, and blue fluorescent dyes, respectively. A five-base read from a sequencing reaction produced the following color sequence, read by the computer: red, yellow, yellow, green, green. What

is the sequence of the template DNA? A) TGGAA B) TTCCA C) ACCTT D) AAGGT

Biology & Microbiology