Long interspersed elements (LINEs) are a type of
A. pseudogene.
B. transposon.
C. intron.
D. exon.
E. proteome.
Answer: B
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What is the correct sequence of events during the life cycle of a moss?a. Gametes are produced in the archegonia and antheridia.b. Spores are released.c. The zygote develops within the archegonium.d. The mature sporophyte develops from the gametophyte and produces spores.e. Flagellated sperm swim towards the egg for fertilization.f. Spore germinates into the protonema.
A. f - e - b - d - a - c B. a - b - d - c - b - f C. a - e - c - d - b - f D. a - e - f - d - b - c
Refer to Figure 7-2. The line on the graph labeled B represents the:
a. activation energy with an enzyme.
b. activation energy without an enzyme.
c. free energy of the reactants.
d. change in entropy.
e. change in enthalpy
A plant growth response to mechanical stress, such as rain and contact with passing animals, is knownas:a
phototropism. b. gravitropism. c. thigmomorphogensis. d. a circadian rhythm. e. thigmotropism.
Why is photosynthesis considered an endergonic reaction?
A) Photosynthesis does not comply with the physical laws of the universe. B) Low-energy reactants are converted to high-energy products. C) Activation energy is not required. D) Sugar has less energy than does the sun. E) Protein catalysts are not needed.