Which of the following control measures is NOT used to prevent healthcare-associated infections?
A) aseptic technique
B) frequent handwashing
C) increased use of antibiotics
D) education of staff
Ans: C) increased use of antibiotics
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Why are transgenic animals engineered as models of human disease, rather than studying the disease in humans?
What will be an ideal response?
The daughter cells produced by meiosis are ____
a. identical to the parent but genetically different from each other b. identical to each other but genetically different from the parent c. genetically different from the parent and each other d. genetically identical to the parent and each other e. genetically different from each other but with the same chromosome number as the parent
Which carbohydrate is an important source of energy in most living species?
a. Glucose b. Lactose c. Fructose d. Dextrose
In summer squash, spherical-shaped fruit has been
shown to be dominant to elongated fruit. On one occasion two different spherical varieties were crossed and produced all disk-shaped fruits. When these hybrid disk-shaped fruits were crossed, they produced 75 disk-shaped fruits, 48 spherical fruits, and 9 elongated fruits. Explain these results. What will be an ideal response?