The property of a test to detect even small amounts of antibodies or antigens that are test targets is
A) Agglutination
B) Precipitation
C) Sensitivity
D) Cross-relations
E) Specificity
C) Sensitivity
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Which of the following is not an accurate description of events leading to the lysogenic pathway following viral infection in a bacterium?
A. Upon infection, the linear bacteriophage DNA forms a circle and transcription is initiated at promoters PL and PR. The transcripts from PR encode the proteins cro and cII. B. Reduction in the concentration of cI protein is the most important contributor to lysogeny. C. Reduced protease activity due to poor conditions allows cII to accumulate, which then stimulates transcription from PE and thus expression of cI. D. cI protein binds to operator OR , preventing cro and cII expression. E. cI protein stimulates transcription from promoter PM, leading to even more cI production. The increased cI binds to operator OL and inhibits PL.
The codons UCU, UCC, UCA, and UCG all code for the same amino acid, serine. In which position of the codon are mutations most likely to be found when comparing the same gene of two closely related species?
A. position 1 B. position 2 C. position 3 D. none of the positions; any change will be lethal.
Which population dispersion is the most common in nature?
a. random b. clumped c. uniform d. dynamic e. unpredictable
The extracellular fluid has three components, plasma, interstitial fluid, and cells
Indicate whether the statement is true or false.