You isolate a plant that expresses a phytochrome mutant that is always in the
Pfr form. You expect these plants will germinate
A. not at all.
B. regardless of the light conditions.
C. later than normal plants.
D. similarly to normal plants.
B. regardless of the light conditions.
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Among protostomes, which morphological trait has shown the most variation?
A) type of symmetry (bilateral vs. radial vs. none) B) type of body cavity (coelom vs. pseudocoelom vs. no coelom) C) number of embryonic tissue types (diploblasty vs. triploblasty) D) type of development (protostome vs. deuterostome)
Obese people have a greater risk of four of the following. Which one is the exception?
a. type 1 diabetes b. colon cancer c. high blood pressure d. breast cancer e. heart disease
Genetic engineering has produced which of the
following animals? a. goats with heart-healthy milk b. low-fat pigs c. extra hefty sheep d. cows resistant to mad cow disease e. all of these
It is appropriate to use the coarse focus adjustment when on the _____ objective(s):
A. 4x B. 10x C. 40x D. a-b E. a-c