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

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology