Which of these is a polysaccharide?

a. sucrose
b. galactose
c. lactose
d. cellulose
e. glucose


Ans: d. cellulose

Biology & Microbiology

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Assume that the mutation rate for a given gene is 5 × 10?6 mutations per generation. For that gene, how many mutations would be expected if 10 million sperm are examined?

A) none B) 5 × 10?6 C) 5 D) 50 E) 500

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Four of the following are members of the bony fishes. Which one is the exception?

a. teleosts b. ray-finned fish c. lungfish d. stingrays e. lobe-finned fishes

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If a cell contains lysosomes, what type of cell must it be?

a. a fungal cell b. a prokaryotic cell c. an animal cell d. a plant cell

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When a UTI spreads to the kidneys it is called (cystitis/pyelonephritis/urethritis)

What will be an ideal response?

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