For some virulent phages, fragments of the host DNA may be included in the heads as the viral particles assemble, thus providing the basis for transduction of bacterial genes during the next cycle of infection. What is the name of this mechanism?
a. generalized transduction
b. transformation
c. transmutation
d. specific transduction
Ans: a. generalized transduction
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Which of the following is known to use tsetse flies as intermediate hosts?
A. Entameoba histolytica B. Trypanosoma brucei gambiense C. Histoplasma capsulatum D. Giardia lamblia
Which of the following is not a camouflage device?
a. chromatophores b. iridophores c. thigmotaxis d. obliterative countershading
If a plant species cannot readily have a new gene integrated into it via a Ti plasmid, it must then be subjected to different methods
These often include removing the cell wall and inserting DNA, after treating the membrane with heat or electricity to do what to the membrane?
Sheaths of the bacterium Sphaerotilus are tubelike structures that are in intimate contact with the chain of cells that they enclose.
Answer the following statement true (T) or false (F)