Which antibody class is found in exocrine secretions?
a. IgG
b. IgA
c. IgE
d. IgD
e. IgM
ANSWER: b
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The double helix model of DNA structure was proposed by
A. Watson and Crick. B. Griffith. C. Avery. D. Franklin. E. Chargaff.
Genes may show 50% recombination either when the genes are on different chromosomes or when the genes are far apart on the same chromosome
Indicate whether the statement is true or false
The soft part of a plant body, such as a potato, consists largely of __________ tissue
a. sclerenchyma b. collenchyma c. parenchyma d. phloem e. xylem
You want to determine the location of a specific protein in a cell using a colored stain. Which of the following is the
best technique for this purpose?
a. electron microscopy b. phase contrast microscopy c. bright-field microscopy d. fluorescence microscopy e. dark-field microscopy