What effect does "pinching back" have on a houseplant?
a. increases apical dominance
b. inhibits the growth of lateral buds
c. produces a plant that will grow taller
d. stimulates lateral buds to grow
e. increases the flow of auxin down the shoot
Ans: d. stimulates lateral buds to grow
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In the Hardy-Weinberg equation, p2 + 2pq + q2 = 1. If the dominant allele frequency is 0.8, what percent of the population will be homozygous dominant?
A. 0.32 B. 0.64 C. 0.40 D. 0.16 E. 0.04
Exocrine glands secrete all of the following
EXCEPT a. mucus. b. hormones. c. earwax. d. milk. e. digestive enzymes
Adaptive immunity has a response time of ____
a. immediate response b. 1-2 days c. 7-10 days d. 2 weeks e. one month
The conclusion associated with mutant strain III in Figure 13-1 was that it:
a. contained all the enzymes needed for normal metabolism.
b. was missing all the enzymes for metabolism of amino acids.
c. was missing an enzyme for metabolism and could not synthesize arginine.
d. was missing an enzyme for metabolism and could not synthesize citrulline.
e. was missing an enzyme for metabolism and could not synthesize ornithine.