Listeria monocytogenes causes over 2,500 illnesses annually in the United States. If it was isolated in two cases, would epidemiological studies be required to determine if the two cases are related?
A) Yes, epidemiological studies would be required to differentiate between two organisms of the same species and formulate an epidemiological explanation.
B) No, simply identifying the bacterial species responsible for the outbreak would be enough to formulate an epidemiological explanation.
A) Yes, epidemiological studies would be required to differentiate between two organisms of the same species and formulate an epidemiological explanation.
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Specialized epithelial cells called ____________________ secrete substances that function outside the cell. Fill in the blank(s) with the appropriate word(s)
TMV, or ________, is a rodlike particle with a genome of ________ and a ________ consisting of 2130 copies of a single polypeptide
Fill in the blank with correct word.
The distribution of mitochondria between the daughter cells during cytokinesis
a. is random. b. is directed by the mitotic spindle. c. is directed by the centrioles. d. results in the mitochondria remaining in the parent cell. e. occurs only during meiosis.
Which of these is the process by which homologues exchange chromosome segments at the beginning of meiosis to increase genetic variability in offspring?
What will be an ideal response?