Four of the five choices listed below are haploid
Select the exception.
a. gametophyte
b. zygote
c. sperm
d. microspore
e. gamete
Answer: b
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Which of these hydrocarbons has a double bond in its structure?
a. C3H8 b. C2H6 c. CH4 d. C2H4 e. C2H2
What levels of structure can proteins assume?
a. primary and secondary b. tertiary and quaternary c. primary only d. both a and b above
Spherocytosis is a human blood disorder associated with a defective cytoskeletal protein in the red blood cells (RBCs). What do you suspect is the consequence of such a defect?
A) abnormally shaped RBCs B) an insufficient supply of ATP in the RBCs C) an insufficient supply of oxygen-transporting proteins in the RBCs D) adherence of RBCs to blood vessel walls, causing plaque formation
Which of the following is an example of a type I hypersensitivity reaction?
A) watery eyes after exposure to animals B) destruction of red blood cells after an incompatible blood transfusion C) farmer's lung D) immune complexes accumulation in the kidneys E) the tuberculin response