Which of the following would not be important when evaluating measures of frequency?
A) how the population is defined
B) how long the infection lasts
C) factors that may be linked to cases of the disease
D) prevalence rate
E) incidence rate
Answer: C) factors that may be linked to cases of the disease
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All of the following statements are evidence that evolution of the FoxP2 gene may have contributed to the evolution of language in humans EXCEPT:
A. Individuals with mutations in FoxP2 have problems with speech and language. B. The FoxP2 gene shows an elevated frequency of non-synonymous to synonymous mutations when comparing human-chimp sequences relative to mousechimp comparison. C. Studies of Neanderthal DNA have shown that Neanderthals possessed the modern human version of FoxP2. D. FoxP2 is an evolutionarily conserved transcription factor that plays an important role in development, including brain development.
The function of the polymerase chain reaction in genetic engineering is to
A. link together newly joined fragments of DNA. B. cut DNA into many fragments. C. make multiple copies of a specific segment of DNA. D. separate fragments of DNA by their length and electrical charges. E. carry DNA into a new cell.
Amyloplasts are organelles that store:a
fat.
b. starch. c. protein. d. lipids. e. DNA
Figure 24.9
In the accompanying figure, a feeding polyp in the mature colony is identified by the number
A. 1. B. 2. C. 3. D. 4. E. 5.