Chagas' disease is transmitted by a bug with mouthparts that penetrate blood vessels. Which type of exposure does this represent?
A) mucous membrane portal
B) parenteral route
C) skin portal
D) contact
E) fomite
B
Biology & Microbiology
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One type of small regulatory RNA that inhibits translation of mRNAs is called ____ (miRNA)
Fill in the blank with the appropriate word.
Biology & Microbiology
Which of the following events involves the release of enzymes?
A. cell cleavage B. cortical reaction C. egg membrane depolarization D. increase in cytosolic calcium within the egg E. the fusion of egg and sperm nuclei
Biology & Microbiology
In mitosis, one diploid nucleus becomes
a. two haploid nuclei. b. one haploid nucleus. c. two diploid nuclei. d. four diploid nuclei. e. four haploid nuclei.
Biology & Microbiology
A species is found to exist in one of three colors. Assuming an epistatic interaction, how many genes would be
involved? a. zero b. one
c. two d. three e. six
Biology & Microbiology