Use of a Kaplan Meier plot would be most appropriate for displaying
a) The number of cancer cells required before a tumor is clinically detectible
b) The rates of certain cancers compared across different geographical areas
c) The time elapsed between experimental drug treatment and patient death
d) The time it takes for a transformed cell to undergo mitosis
Answer: c) The time elapsed between experimental drug treatment and patient death
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Instead of linear chromosomes like humans have, prokaryotes arrange their DNA into which of the following?
a. an X-shape b. a Y-shape c. a loop d. a cube
All crocodilians
a. live in or near water. b. are predators with sharp teeth. c. have a four-chambered heart. d. have powerful jaws. e. fit all of these descriptions
Secondary xylem contains all of the following cell types except:a
tracheids. b. vessel elements. c. sieve tube elements d. fibers. e. parenchyma
________ is an unusual base found in the DNA of T4 phages.
What will be an ideal response?