Recently Zika virus has been in the news, with many cases in Central and South America and increasing numbers of cases in the southern United States. Five years ago this virus was essentially unheard of in these areas. This is an example of
A. a pandemic.
B. an endemic virus.
C. an emerging infectious disease.
D. genetic recombination.
Answer: C
You might also like to view...
A researcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (TMV). The cell contents are left in a covered test tube overnight
The next day this mixture is sprayed on tobacco plants. We expect that the plants would _____.A) develop some but not all of the symptoms of the TMV infection B) develop symptoms typically produced by viroids C) develop the typical symptoms of TMV infection D) not show any disease symptoms E) become infected, but the sap from these plants would be unable to infect other plants
The rubeola virus contains
A. double-stranded RNA. B. single-stranded DNA. C. double-stranded DNA. D. single-stranded RNA.
What type of cell signaling occurs through the extracellular matrix to nearby target cells?
What will be an ideal response?
Human chorionic gonadotropin signals the placenta to produce large amounts of estrogen and
progesterone. ___________________ Indicate whether the statement is true or false.