A biologist studying evolution starts with a single cell of E. coli and grows a population of one billion bacteria from it. Which rule of Hardy-Weinberg must be broken first before evolution will occur in this population?
a. no new mutations
b. large population size
c. no natural selection
d. random mating
Answer: a. no new mutations
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Which of the following questions is most appropriate to an investigation at the landscape level?
A) What is the effect of diminished resources on an individual's life span? B) What is the relationship between resource availability and birthrate? C) Which factors give rise to the spatial extent and arrangement of the various ecosystems? D) How long does it take for carbon to be cycled from the atmosphere into living tissue?
Discuss how the research on any genetic disorder and the fields of structural genomics and pharmacogenomics rely on
proteomics. What will be an ideal response?
An adult human's red blood cells are formed in the
A) spleen. B) liver. C) bone marrow. D) thyroid gland.
The attenuated oral poliovirus vaccine (OVP) is no longer administered in the U.S.A. because it
A. is very toxic. B. does not provide good immunity. C. can occasionally cause poliomyelitis. D. can be spread to contacts. E. can be spread to contacts and can occasionally cause poliomyelitis.