The H5N1 influenza killed more than 50% of those infected
a. True
b. False
Indicate whether the statement is true or false
True
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You explain to your study group that a hypothesis is:
A. constant over time. B. a proposition that will be true and fits the known facts. C. an explanation that accounts for careful observations. D. a theory.
In the Endler (1980) paper, what did the author mainly investigate?
A. How guppies use coloration to evade predators B. How guppies' color patterns are results of sexual selection C. How guppies' color patterns are result of a balance between sexual sexual selection and crypsis D. How guppies are distributed throughout native streams based on color patterns
At an autosomal gene locus in humans, the allele for brown eyes is dominant over the allele for blue eyes. At another gene locus, located on the X chromosome, a recessive allele produces colorblindness while the dominant allele produces normal color vision. A heterozygous brown-eyed woman who is a carrier of colorblindness has children with a blue-eyed man who is not colorblind. What is the probability that their first child will be a blue-eyed female who has normal color vision? (Enter the probability as a percent. Enter the number only without the percent sign. For example, enter 100% as 100 and enter 12.5% as 12.5)
Fill in the blank(s) with the appropriate word(s).
Assume that you have cut ? DNA with the restriction enzyme HindIII. You separate the fragments on an agarose gel and stain the DNA with ethidium bromide. You notice that the intensity of the stain is less in the bands that have migrated closer to the
"+" pole. Give an explanation for this finding. What will be an ideal response?