Please select the pathogen from the genus Streptococcus that correctly represents the most serious pathogen of this group.
A) Group A beta-hemolytic S. pneumoniae
B) Group A beta-hemolytic S. pyogenes
C) Group A beta-hemolytic S. agalactiae
D) Group B alpha-hemolytic S. pyogenes
B) Group A beta-hemolytic S. pyogenes
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The five-year survival rate of ____________________ cancer is only 13%. Fill in the blank(s) with the appropriate word(s)
How many structural genes are under the control of the trp operon promoter?
A) 1 B) 2 C) 3 D) 4 E) 5
Retroviruses or RNA tumor viruses use __________ to make DNA
a. DNA polymerase b. DNA-dependent RNA polymerase c. RNA polymerase d. primase e. reverse transcriptase
Your abdominal cavity, which contains most of your major organs:a
is a pseudocoelom lined by endoderm. b. is a pseudocoelom lined by mesoderm. c. is a coelom lined by endoderm and mesoderm. d. is a coelom lined by ectoderm. e. is a coelom lined by mesoderm.