Which virulent and important human pathogen can also be recovered from the nares, perineum, and other skin sites of healthy people, especially in the hospital setting?
a. Micrococcus luteus
b. S. intermedius
c. S. aureus
d. All Micrococcaceae
C
S. aureus is one of the many species that exist as the normal microbiota of humans and is a common cause of nosocomial infections.
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Choose the true statement about synteny.
A. Synteny refers to the conservation of gene order along chromosomes. B. Synteny refers to the constancy of chromosome numbers in related clades. C. Synteny results from polyploidization events. D. Synteny refers to the rearrangement of gene order due to inversions. E. Synteny is only observed in closely related clades.
Write the letter of the region expected to have the highest population by 2025 next to 1, the letter of
the region expected to have the lowest population by 2025 next to 6.
A. Europe B. Asia C. Latin America D. North America E. Africa 1. 2. 3. 4. 5.
synaptic signals use ______ for communication
Fill in the blank(s) with the appropriate word(s).
A piece of DNA that is self-replicating and is used to carry desired genes into new cells is called a(n)
a. library. b. clone. c. vector. d. intron