The indicator of the hydrogen sulfide gas in the Triple sugar Iron Agar is
A. sodium sulfide
B. sodium sulfate
C. sodium thiosulfate
D. ferrous sulfate
E. ferric chloride
Ans: D. ferrous sulfate
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Which of the following organs of the endocrine system secretes several hormones and stores two
hormones produced by the hypothalamus? a. pituitary gland b. pancreas c. pineal gland d. adrenal glands e. thyroid gland
The number and location of transmembrane segments in an integral membrane protein can be inferred from the amino acid sequence of the protein by a computer-generated
A) Western blot. B) DNA sequence. C) freeze-fracture replica. D) hydropathy plot. E) prediction of glycosylation sites.
Which antibody has the shape of a pentamer, or five-sided arrangement?
A) IgA B) IgD C) IgM D) IgG
At what phase of the cell cycle does p53 halt cell division if it senses DNA damage?
A. G1 B. G2 C. G0 D. M E. S