In the testing of water for coliforms, the presumptive test involves detection of
A. sheen production on a selective medium.
B. a gram-negative nonspore-forming rod.
C. gas production in a lactose broth medium.
D. All of these choices are correct.
Answer: C
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Where in a limb bone would trabeculae be found?
A. in the epiphysis B. in the diaphysis C. in the compact bone D. in the marrow cavity E. in the shaft
The type of contraception that works because ovulation is prevented is:
a. rhythm method b. tubal ligation c. oral contraceptive pills d. the diaphragm e. the condom
In retroviruses, there is a stop codon at the end of the reading frame for the first gene
However, in about 5% of the proteins, the stop codon is bypassed, resulting in translation of the second gene and synthesis of a fused protein representing both genes 1 and 2. How is the stop codon bypassed if the reading frames of the first and second genes are different? What will be an ideal response?
True or false: Sterile saline has sterilizing effects on the skin.
What will be an ideal response?