The major force responsible for water transport in plants is
A. water pressure for guard cells
B. photosynthesis
C. evaporation
D. root pressure
Ans: A. water pressure for guard cells
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True or False: Variable expressivity implies that the disease may not always be present in individuals with a genotype that "should" lead to disease
A. true B. false
Water obtained from seawater desalination is much cheaper than water pumped from the ground
Indicate whether the statement is true or false
Which of the following is mismatched?
a. certain fungi; retinal destruction b. trachoma; damage to conjunctiva leading to blindness c. glaucoma; excess pressure of the aqueous humor d. astigmatism; vertical axis is longer than the horizontal axis of the eyeball e. cataract; gradual clouding of the lens
Why does DNA synthesis proceed in a 5? to 3? direction?
a. DNA polymerases can only add nucleotides to the 3? end of a polynucleotide strand. b. The 3? end of the polynucleotide molecule contains more phosphates than the 5? end. c. DNA unzips in the 5’ to 3’ direction. d. DNA strands are parallel to each other. e. Chromosomes are aligned in the 5? to 3? direction in the nucleus.