An emerging disease is one that
A. is now present on multiple continents.
B. can be transmitted in multiple ways.
C. is newly recognized in the last two decades.
D. has suddenly caused an epidemic.
E. can infect both humans and animals.
Answer: C
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An antiviral that is a guanine analog would have an antiviral mode of action that
A. blocks transcription and translation. B. blocks penetration. C. blocks maturation. D. inhibits DNA synthesis. E. bonds to ergosterol in the cell membrane.
Explain the significance of apomixis in propagation of plants. Cite two examples of commercial
significance. What will be an ideal response?
In humans, the embryonic and fetal forms of hemoglobin have a higher affinity for oxygen than that of adults. This is due to _____
A) nonidentical genes that produce different versions of globins during development. B) pseudogenes, which interfere with gene expression in adults. C) the attachment of methyl groups to cytosine following birth, which changes the type of hemoglobin produced. D) histone proteins changing shape during embryonic development.
A group of individuals who are able to interbreed, regardless of their geographical location, is defined as a(n) ________
Fill in the blank(s) with correct word