Tin is commonly found:
a. in coastal sediments.
b. in oceanic sediments.
c. dissolved in seawater.
d. in manganese nodules.
e. at the bottom of trenches.
A
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Which of the following events must occur to cause a chromosomal translocation, such as that seen in individuals with chronic myelogenous leukemia (CML)?
A. One chromosome must break in two distinct locations. B. Two different chromosomes must break. C. A transposon must be present in one of the chromosomes. D. The broken ends must pair correctly. E. A mutation in the DNA must occur.
In a tropical forest some leaves are dark green
and some are light green. In a population of caterpillars, homozygous dominant dark green caterpillars thrive eating the green foliage; homozygous recessive light green caterpillars thrive eating light green foliage; heterozygous caterpillars of an intermediate color green are easily seen by birds and eaten, thus there frequency is far less than the dominants or recessives. This is an example of ___ selection.
a. directional b. stabilizing c. disruptive d. frequent e. mutational
Brown recluse spiders can be dangerous. Where would you find them?
a. All across Georgia b. In southeast Georgia c. In northwest Georgia d. In southwest Georgia, near Alabama border
A microscope that exposes specimens to ultraviolet, violet, or blue light and forms an image with the light emitted at a different wavelength is called a ________ microscope.
A. fluorescence B. scanning electron C. dark-field D. phase-contrast