Bacterial biofilms are composed of 95%
a. carbohydrates
b. microorganism
c. water
d. DNA
e. polysaccharide and water
Answer: c. water
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How long after initiation of a primary response do significant amounts of antibody appear in the blood?
A. One day B. 10-14 days C. 4 weeks D. 6 months
What occurs when mitosis is not followed by cytokinesis, and it results in offspring having two sets of chromosomes?
a. autopolyploidy b. alloploidy c. adaptive radiation d. dispersal
The sickle-cell mutant allele and wild-type ?-globin allele are codominant
Indicate whether the statement is true or false
Which of the following statements regarding ELISAs is TRUE?
A) They are not quantitative. B) They require large amounts of serum. C) The antibody label is a fluorescent molecule. D) They can be used to detect antibody or antigen. E) They involve the use of membrane filters.