Refer to the paragraph about the formation of the Isthmus of Panama. If the isthmus formed gradually rather than suddenly, what pattern of genetic divergence would you expect to find in these species pairs?
A) similar percentages of difference in DNA sequence between all pairs of sister species
B) greater percentage of difference in DNA sequence between species that inhabit deep water than between species that inhabit shallow water
C) greater percentage of difference in DNA sequence between species that inhabit shallow water than between species that inhabit deep water
Answer: B
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SNPs arise from:
A. deletion B. inversion C. translocation D. duplication E. point mutations
Any process that results in an increase in the free energy of the system is called ________
Fill in the blank with correct word.
Which of the following is/are part of accepted cell theory?
a. Every living organism is composed of one or more cells, and all living cells have membrane-enclosed organelles. b. All living cells arise from preexisting cells, and all living cells have membrane-enclosed organelles. c. All living cells have membrane-enclosed organelles. d. Every living organism is composed of one or more cells, and all living cells arise from preexisting cells.
Which of the following would most likely interact by forming an ionic bond?
A.) the enzyme hexokinase and its substrate glucose B.) ATP and magnesium cations C.) two strands of DNA D.) fatty acid chain and inorganic phosphate E.) urea and water