The respiratory syncytial virus takes its name from the
A. involvement of the liver tissue
B. formation of giant cells in tissue culture cells
C. involvement of the nervous system
D. lysis of the red blood cells which accompanies the disease
E. grouped mass of virions within a single viral envelope
Answer: B. formation of giant cells in tissue culture cells
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Instinctive behaviors that are carried out regardless of earlier experience are called ____ behaviors and are a product of an individual's genome
Fill in the blank with the appropriate word.
You grow a culture of bacteria and split it into two culture tubes. One sample of bacteria you treat with calcium and the other is not treated. When you transform both samples with a plasmid, only the samples treated with calcium take up the plasmid. Which of the following best explains your results?
A. DNA is degraded in the absence of calcium. B. Calcium precipitates DNA, preventing it from being taken up by cells. C. The bacteria require calcium to grow. D. The calcium makes the bacterial membrane more porous to DNA. E. The bacteria use calcium as a source of energy to take up the DNA.
Molecular biologists rely on many, often sophisticated, techniques to pursue their discipline. Ultracentrifugation, electron microscopy, X-ray diffraction, electrophoresis, and computer interfacing are fundamental tools
Model organisms provide the raw materials for study. List three organisms (or organismic groups) often used by recombinant DNA technologists and describe a major advantage of each group.
Plants increase the rate at which water leaves terrestrial ecosystems
Indicate whether the statement is true or false