The total number of existing cases of disease within a defined population is the _________.

A) incidence
B) prevalence


B) prevalence

Biology & Microbiology

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What is a single-nucleotide polymorphism?

A. any point mutation B. the presence of single nucleotides in the DNA double helix C. a site where a restriction enzyme cuts D. a site where RNA polymerase binds to DNA E. None of the above is correct.

Biology & Microbiology

Which of the following cells stop dividing once fully formed?

a. bone cells b. cheek cells c. liver cells d. muscle cells e. nerve cells in the brain

Biology & Microbiology

Based on this DNA fingerprint, who is guilty of the sexual assault?

1.Suspect 1 2.Suspect 2 3.Neither of the two tested suspects committed the crime. 4.Neither of the suspects can be excluded.

Biology & Microbiology

Which of the following is made from DNA?

a. tRNA only b. mRNA only

c. rRNA only d. mRNA and tRNA only e. mRNA, tRNA, and rRNA

Biology & Microbiology