Bruce Reimer was born with ambiguous genitalia
a. True
b. False
Indicate whether the statement is true or false
False
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An artificial vesicle composed of a lipid bilayer is mixed with several peripheral membrane proteins and analyzed by freeze-fracture electron microscopy. What will be seen in the resulting image?
A. bumps will be visible on both layers B. bumps will be visible only in the extracellular face (E face) C. bumps will be visible in the protoplasmic face (P face) D. No bumps will be visible in either face
Autosomal monosomy is not seen in live births because:a
its effects are so small as to be overlooked. b. its effects do not set in until adulthood. c. its effects are so lethal as to cause spontaneous abortion early in pregnancy. d. it only occurs in sex chromosomes and therefore does affect nonreproductive function. e. they lead to the establishment of a clone of abnormal cells
Refer to Figure 40-5. The molecules required to bind at the sites labeled 1 and 2 for a cross bridge to
form are:a. Ca2+ and myosin. b. ADP and myosin. c. myosin and troponin. d. ATP and Ca2+. e. tropomyosin and O2.
Which of the following are members of the class Mammalia and are known as primates?
a. monkeys c. birds b. turtles d. salamanders e. ray-finned fish