The normal human karyotype contains __________ autosomes
a. 22
b. 23
c. 44
d. 46
e. 54
C
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The basic contractile unit of a muscle is called the:
A. sarcomere. B. myofibril. C. muscle fiber. D. thick filament. E. Z disc.
Hydrocarbons are hydrophobic because:a
the covalent bonds between hydrogen and carbon are nonpolar. b. they contain oxygen atoms. c. they exist as isomers. d. the covalent bonds between carbon atoms are polar. e. the hydrogen bonds between hydrogen and carbon are nonpolar.
Increases in the level of body fat produce increases in body __________, which require additional energy to main them - and decreases in the level of body fat have the opposite effects.
Fill in the blank(s) with the appropriate word(s).
Caudal-fold tuberculin test (CFT): an intradermal infection of 0.1 mL of USDA purified protein derivative (PPD) tuberculin into either side of the caudal fold with reading by visual observation and palpation. The PPD extract is from
A. Mycobacterium tuberculosis B. mycobacterium bovis C. mycobacteirum avium subsp. paratuberculosis D. either mycobacterium tuberculosis or mycobacterium bovis