Degradation of cytoplasmic organelles occurs by fusion of lysosomes with structures called
a. primary lysosomes.
b. phagolysosomes.
c. autophagosomes.
d. mitochondria.
Ans: c. autophagosomes.
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Which one of the following is characteristic of both living organisms and non-living material?
A. the capacity to evolve B. the ability to reproduce C. complexity, with spatial organization on several levels D. the ability to change in response to the environment E. obeying the basic laws of chemistry and physics
Graded potentials are particularly important for conveying stimulus intensity in
A. sensory neurons. B. motor neurons. C. interneurons. D. skeletal muscle cells. E. Schwann cells.
Assume that a Chi-square test was conducted to test the goodness of fit to a 9:3:3:1 ratio and a Chi-square value of 10.62 was obtained. Should the null hypothesis be accepted?
What will be an ideal response?
When creating transgenic animals, as contrasted with the creation of transgenic bacteria,
a. it is necessary to carry out the procedure completely by hand. b. animals need donor eggs to contain the genetic material, while bacteria can have the new genes inserted into any bacterial cell. c. transgenic animals can be created in large numbers, while bacteria must be created one at a time to control contamination. d. the membranes of the bacteria must be disrupted to allow the genes to be taken up into the cell and animals do not require the host cell membrane to be disrupted. e. the membranes of the animal cell must be disrupted to allow the genes to be taken up into the cell and bacteria do not require the host cell membrane to be disrupted.