Practice Quiz

MTEL Technology and Engineering

Category - Tech and Engineering

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Which of the following is an example of cloning?
  1. Artificially cross-pollinating corn plants.
  2. Selectively breeding cattle.
  3. Fertilizing a mammalian egg in vitro.
  4. Propagating a plant using cuttings.
Explanation
Correct Response: D. Cloning is the process of using tissue from a single individual to produce genetically identical offspring. It is carried out without the use of sexual reproduction. An example is the propagation of a plant by using cuttings (D). Artificially cross-pollinating corn plants (A), selectively breeding cattle (B), and fertilizing a mammalian egg in vitro (C) all involve sexual reproduction, and are therefore not examples of cloning.
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