List one likely cost and one likely benefit for each of the mutualistic partners in the Iridomyrmex ant and im-perial blue butterfly caterpillars
A. Benefit for ants:
B. Cost for ants:
C. Benefit for caterpillars:
D. Cost for caterpillar:
ANS:
A: food from caterpillar secretion; B: risk of predation/parasitism when defending caterpillars; C: protection from predation/parasitism; D: fitness loss due to providing food secretion for ants
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Intermediate filaments
A) were first discovered in muscle cells. B) are grouped into five classes based on the cell types in which they are found. C) have molecular masses averaging 500 kDa. D) are smooth and sticky. E) assemble from nonfibrous filaments.
Provide at least two types of evidence that support the endosymbiont theory. What will be an ideal response?
Nucleic acid blotting is commonly used in molecular biology. Two types, Southern blots and Northern blots, involve gel electrophoresis and a filter, which holds the nucleic acid
Briefly describe the procedure of "blotting" in this context and differentiate between Southern and Northern blots.
Urine when compared with the initial filtrate, contains
a. more glucose b. less water, fewer minerals, and more urea c. decomposed of red blood cells d. concentrated amino acids