The two strands of a DNA molecule contain nitrogen bases which are
A. parallel.
B. complementary.
C. identical.
D. proportionate.
E. random.
Answer: B
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A taxon that includes only birds and bats, two clades of vertebrates capable of flight, is considered ____
a. paraphyletic b. polyphyletic c. monophyletic d. complete e. incomplete
Cataracts occur when the lens becomes opaque. Which symptoms most likely would be present in a patient with this
condition?
a. increased intraocular pressure b. enlarged pupil c. eye pain d. blurred vision e. headache
The products of photosynthesis are
A) glucose, water, and oxygen. B) glucose and water. C) carbon dioxide, water, and energy. D) carbon dioxide, chlorophyll, and oxygen. E) glucose and carbon dioxide.
Which is a descriptions of exenteration?
a. malignant tissues is frozen b. cells are scraped from region c. tumors are burned d. wide resection of tumor and removal of surrounding tissue e. material is taken from the vagina or cervix and analyzed microscopically