What is the slant color in Lysine Iron Agar when the bacteria produce lysine deaminase?
A. Portwine
B. Black
C. Yellow
D. Purple
Ans: A. Portwine
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Which type of plant hormone is primarily responsible for the growth of a floral stalk in rosette plants
such as cabbages?
a. salicylic acid b. cytokinins c. ethylene d. gibberellins e. brassinosteroids
Glycophorin is a heavily glycosylated protein found on the red cell membrane. One or more of the statements in the following list may apply to this protein:
(i) It is a Type I membrane protein (ii) It is a Type II membrane protein (iii) It is a Type III membrane protein (iv) The carbohydrate composition of the protein gives the red cell a hydrophilic surface which allows them to circulate without 'sticking' to other cells or vessel walls. (v) The carbohydrate composition of the protein gives the red cell a hydrophobic surface which allows them to circulate without 'sticking' to other cells or vessel walls. (vi) The carbohydrate composition of the protein gives the red cell a surface which allows them to specifically 'stick' to the vessel walls so they can deliver oxygen to respiring tissues.
A conjugation pilus allows bacteria to
A) attach to surfaces, aiding in the formation of biofilms. B) move using an "oarlike" motion. C) transfer genetic material. D) infect their host.
If your blood pressure is high because of increased blood volume, what hormone will correct this?
A. ADH B. ANH C. aldosterone D. renin E. testosterone