Assume the trait for brown eyes is completely dominant to blue eyes and this trait is controlled by a single gene. If 400 people in a population of 10,000 have blue eyes, how many people would be expected to be heterozygous for this trait? (Hint: Use the Hardy-Weinberg formula.)
a. 8,000
b. 5,400
c. 3,200
d. 960
e. 320
c
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Where is a ganglion found?
a. brain
b. spinal cord c. peripheral nervous system d. brain stem e. interneurons
El Niño is a recurring weather phenomenon that
a. increases global warming. b. stabilizes world climates. c. produces a fluctuation in global climates. d. depletes the ozone layer. e. increases oceanic productivity.
Stanley Miller's experiments were significant because he demonstrated that _____.
A. the behavior of any molecule containing a carbon atom was fundamentally the same B. under certain circumstances the theory of vitalism was valid C. a variety of simple organic compounds could be spontaneously synthesized from components in Earth's primitive atmosphere D. lightning discharges could produce the molecules previously presumed to have originated in volcanic outgassings E. urea could be synthesized from entirely naturally occurring salts
Darwin's theory of evolution is supported by many modern pieces of evidence. Check all that apply.A) new measurements of the age of the earthB) an understanding of the mechanism of heredityC) human population growthD) comparative studies of animal structuresE) similarities in DNA of related species
What will be an ideal response?