There are ________ different olfactory receptor proteins in humans that allow us to sense a variety of odors

A) 5 to 10
B) 350 to 400
C) 10 to 15
D) 100,000 to 500,000
E) 1,000 to 1,500


B

Biology & Microbiology

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If you have a double stranded synthetic piece of DNA that you want to attach to a PCR product, which enzyme would be used to join together two molecules.

A. DNA polymerase. B. Reverse transcriptase. C. Restriction enzyme. D. Taq DNA polymerase. E. DNA ligase.

Biology & Microbiology

Archaeons power their flagella by proton motive force (PMF), whereas bacteria empower their flagella by ATP hydrolysis.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Scientific knowledge is limited to physical explanations for observable events in the natural world

a. true b. false

Biology & Microbiology

Individuals with diabetes mellitus are at greatest risk of dying from _______.

A. kidney disease B. neurological problems C. impotence D. cardiovascular disease

Biology & Microbiology