If a stretch of human double stranded DNA contains 47% G and C bases, then ____
a. it contains 47% A and T bases
b. there are more pyrimidines than purines
c. there are more purines than pyrimidines
d. it contains 53% A and T bases
e. there are no genes in this stretch of DNA
ANSWER: d
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A. protozoa B. bacteria C. algae D. fungi
You decide to do an experiment with isolated myofibrils to explore the effects of ATP hydrolysis on myofibril function. You do this by bathing the myofibrils in a solution that contains a modified form of ATP, which cannot be split into ADP and Pi. At what step will myofibril function be arrested by using this compound instead of unmodified ATP?
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What protein produces bioluminescence?
a. Luciferin b. Photophorin c. Luciferase d. Photophorase
Which is untrue of the portals of exit of a pathogen from the human body
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