Please choose the answer that best fills in the blanks of this sentence in the correct order. A ________ infectious disease, such as a urinary tract infection, is not transmitted from person to person, whereas an infectious disease which is transmitted from one person to another, such as influenza, is referred to as a ________ infectious disease.
A) Communicable; noncommunicable
B) Noncommunicable; communicable
C) Communicable; contagious
B) Noncommunicable; communicable
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Which of the following are never sink regions for the
pressure-flow translocation of organic compounds? a. growing leaves b. seeds c. fruits d. roots e. mature photosynthesizing leaves
The organelle that resembles a "stack of pancakes" is the
a. ribosome. b. lysosome. c. nucleolus. d. Golgi body. e. peroxisome.
When gene duplication occurs to its ultimate extent by doubling all genes in a genome, what has occurred?
A) pseudogene creation B) creation of a gene cluster C) creation of a polyploid D) creation of a diploid
A gene that codes for a protein was removed from a eukaryotic cell and inserted into a prokaryotic cell. Although the gene was successfully transcribed and translated, it produced a different protein than it produced in the eukaryotic cell. What is the most likely explanation?
A. Unlike eukaryotes, which have three different RNA polymerases, prokaryotes have a single RNA polymerase. B. Eukaryotic transcripts have a 5' cap while prokaryotic transcripts do not. C. Eukaryotic genes often contain introns while prokaryotic genes do not. D. There are slight differences in the genetic code for prokaryotes and eukaryotes.