Depending on the disease, individuals can be contagious during the incubation and prodromal periods as well as the periods of illness, decline, and convalescence.
a. true
b. false
Ans: a. true
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______ cells contain one set of chromosomes.
A. Germ-line B. Somatic C. Diploid D. Haploid
Which microscope visualizes specimens coated with a thin layer of metal?
a. transmission electron microscope b. scanning electron microscope c. fluorescence microscope d. phase-contrast microscope e. compound microscope
During polymerase chain reaction, DNA amplification can come to an end
A) when there are no more free nucleotides. B) once the DNA template is used up. C) once the RNA template is used up. D) as DNA polymerase is produced. E) when the stop codon is added to the template.
The process of seeking an answer in science is often called the scientific method.
Indicate whether the statement is true or false. A. True B. False