Phylogenetic trees can always be regarded as ________ about evolutionary relationships

A) facts
B) hypotheses
C) guesses
D) none of the above


B

Biology & Microbiology

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In Hashimotos's disease, autoantibodies are made against ________, a product of the thyroid gland

A) bacteria B) hemoglobin C) thyroglobulin D) viruses

Biology & Microbiology

The interphase nucleus has an internal structure in which each chromosome occupies a distinct region called a chromosome territory

a. True b. False Indicate whether the statement is true or false

Biology & Microbiology

Precipitation tests involve all of the following, except

A.) they rely on formation of visible clumps for detection B.) they include the VDRL test for syphilis C.) they are often performed in agar gels D.) they can be done in a test tube by carefully adding antiserum over antigen solution E.) a cloudy or opaque zone developing where antigen and antibody react

Biology & Microbiology

A young woman who was recently hiking in the mountains and discovered a tick on her torso has a fever that came on quite suddenly. She has no rash, but she develops leukopenia. Which of the following diseases is she most likely to have contracted?

A. anaplasmosis B. Lyme disease C. relapsing fever D. Rocky Mountain spotted fever E. scrub typhus

Biology & Microbiology