Which of the following is NOT true of adult cloning?
a. It involves differentiated cells.
b. It occurs with some frequency in nature.
c. It involves rewinding the developmental clock.
d. It involves an egg cell that has had its nucleus
removed.
e. It may involve nuclear transfer.
Answer: b
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Pseudogenes are evidence of
A) gene duplications. B) integrated viruses, or proviruses. C) natural selection for functional genes. D) de novo genes. E) proteins that are produced but have no function.
The current state of the revision of "protistan" taxonomy is an example of which feature of good scientific practice?
A) the need to suspend judgment until enough evidence is available to make an informed decision B)base conclusions on controlled, repeatable experiments. C)be willing to change, or drop, one's hypotheses when the data warrant it. D)avoid sampling techniques that can introduce bias. E)Both A and C are correct
The thickness of a specimen that can be viewed with one plane of focus is _____.
a. Field of vision b. Magnification c. Resolution d. Depth of Field
Bioremediation of uranium can be accomplished by microbes that reduce U6+, which is ________, to U4+, which is ________
a. toxic / nontoxic b. soluble / particulate c. radioactive / nonradioactive d. immobile / mobile