Question 1
Which of the following situations is NOT a way in which a baby acquires normal microbiota?
◦
microorganisms grow in the respiratory tract after the baby's first breath.
◦ The baby acquires the residential microbiota in the colon after the first meal.
◦
microbes cross the placenta during pregnancy.
◦
Staphylococcus epidermidis is transferred from the hospital staff to the newborn after delivery.
◦
microbes enter the nose and mouth when the baby is in the birth canal.
Question 2
Which of the following situations might cause normal microbiota to become opportunistic pathogens?
◦ growth of microorganisms on the excreted cellular wastes and dead cells in the large intestine
◦ growth of
Lactobacillus on the surface of teeth
◦ growth of microbes on the surface of intact skin
◦ presence of
Entamoeba in the lumen of the colon
◦ treatment of a cancer patient with radiation
Normal glomerulus. Acute glomerulonephritis.
Normal Breath Sounds
Normal right tympanic membrane
Normal DNA vs Italian DNA
Normal nerve conduction of Sodium ion
Microarray procedure for analyzing gene expression in normal and cancer cells