Many prokaryotes play vital roles in global nutrient cycles
a. true
b. false
a. true
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In an average person, ____ erythrocytes are produced each second
a. 200 to 300 b. 2,000 to 3,000 c. 2 to 3 million d. 4.8 to 5.4 million e. 2 to 3 billion
A potent dicot weed killer, 2,4-D, is actually a synthetic
a. phytochrome. b. gibberellin. c. auxin. d. cytokinin. e. abscisic acid.
When comparing different families of animals, you would expect gene-coding for proteins that perform basic cell functions to show much higher homology than gene-coding for proteins involved in coordinating organ systems
Indicate whether the statement is true or false
Crossing over is often reduced around centromeric regions of chromosomes. If you were trying to construct a genetic map of two linked marker loci in this region, what result might you obtain?
A. The recombination frequencies would be high, and you would deduce that the markers were very far from one another. B. The recombination frequencies would be low, and you would deduce that the markers were very far from one another. C. The recombination frequencies would be high, and you would deduce that the markers were very close to one another. D. The recombination frequencies would be too low to detect, and you would not be able to estimate the distance between genetic markers. E. The recombination frequencies would be low, and you would deduce that the markers were very close to one another.