Increased sebum secretion can fuel the overgrowth of the opportunistic pathogen ________ in its normal habitat, leading to disease.
A. Propionibacterium acnes
B. Streptococcus agalactiae
C. viridians streptococci
D. Mycoplasma pneumoniae
E. Actinomyces
Answer: A
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A. kinase B. G protein C. phosphatase D. phosphorylase
Newborn screening using mass spectrometry identifies certain single-gene disorders by detecting
A) the causative mutation. B) the wild type gene sequence. C) an unusual metabolite or metabolic imbalance. D) abnormal proteins in urine.
Which type of mapping was made possible by technology that allowed exact base pair distances between markers to be measured?
a. cytogenetic mapping b. sequence mapping c. radiation hybrid mapping d. linkage mapping
In a spinal cord injury, nerve signals cannot proceed past the location of the injury. What part of the spinal cord was damaged if a person, who is paraplegic, can move their head, arm, neck, and hands, but not their abdomen or legs?
A. thoracic B. cervical C. lumbar D. sacral E. coccyx