An organism is serologically identified in the clinical laboratory. This is an example of which phenotypic property?
a. Subcellular properties
b. Antigenic properties
c. Resistant profiles
d. Nucleic acid sequence analysis
B
Serologic methods examine the organism's antigenic properties.
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________ is / are able to degrade infecting bacteriophage DNA, thus protecting the host cell.
A. Protection exonucleases B. Restriction endonucleases C. Modification methylases D. Lysozyme
In all multi-celled fungi, reproduction begins with ____
a. fusion of male and female gametes b. budding from diploid fruiting structures c. hyphal fragmentation d. fusion of gametophytes e. fusion of haploid hyphae
Recent discoveries on causes of fragile-X syndrome, myotonic dystrophy, and Huntington Disease indicate which type of genetic alteration?
What will be an ideal response?
The following data was obtained when testing the length of time to kill a particular non-spore-forming bacterial species at various temperatures. Identify the thermal death point of this bacterial species.
Temperature Time required to kill 50C 25 55C 20 60C 10 65C 8 A) 65C B) 20 minutes C) 60C D) 50C E) 55C F) 10 minutes