Distinguish among interphase, mitosis, and cytokinesis.
(a) Interphase:
(b) Mitosis:
(c) Cytokinesis:
(a) Interphase: period when nuclei are not dividing.
(b) Mitosis: division of the nucleus.
(c) Cytokinesis: division of the cytoplasm.
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A mosquito becomes infected with West Nile virus and then it bites a human and transfers West Nile virus into the human's bloodstream. Which organism(s) is the vector in this case?
a. human b. mosquito c. bird d. mosquito and bird e. mosquito and human
This molecule transmits heredity information:a
cholesterol. b. adenosine triphosphate. c. nucleic acid. d. fatty acid. e. polysaccharide
For a particular gene, the frequency of the dominant allele H is 0.65. The total population size is 10,000 individuals. In
addition, the homozygous recessive condition results in living but sterile offspring. Fill in the table of values for the generations indicated:Generation p q p2 2pq q2 1 2 Does this population exhibit Hardy-Weinberg equilibrium? Why or why not? If not, what assumptions does the Hardy- Weinberg principle make that appear to be inapplicable in this situation? What will be an ideal response?
Which of the following is a legume involved in housing nitrogen-fixing bacteria?
A. grass B. ferns C. beans D. roses E. oak trees