The early hominid fossils are found in
a. Africa.
b. Asia.
c. Australia.
d. the South Pacific.
e. Europe.
Answer: a
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Each of the following organelles is part of the endomembrane system except
A) the peroxisome. B) the Golgi complex. C) the smooth endoplasmic reticulum. D) the endosome. E) the rough endoplasmic reticulum.
Parathyroid hormone acts to ensure that
A. potassium levels in the blood don't escalate. B. calcium levels in the blood never drop too low. C. sodium levels in urine are constant. D. amounts of water in the blood are sufficient.
The site-specific recombination reaction outcome depends on the location and orientation of the target sites. Which of the following is a possible outcome?
A. Recombination between two oppositely oriented sites on the same DNA molecule will result in a deletion. B. Recombination between two oppositely oriented sites on the same DNA molecule will result in an inversion. C. Recombination between two oppositely oriented sites on the same DNA molecule will result in an insertion. D. Recombination between two sites oriented in the same direction on the same DNA molecule will result in an inversion. E. Recombination between two sites oriented in the same direction on different DNA molecules will result in a deletion.
Uncoating of viral nucleic acid
A. does not occur in bacteriophage multiplication. B. occurs during penetration in the multiplication cycle. C. involves enzymatic destruction of the capsid. D. occurs before replication. E. All of the choices are correct.