[Campbell Biology P.886] According to the text, which of the following best describes a "tra... | Practice Question

According to the text, which of the following best describes a "transgene" and its occurrence?

  • A: A gene transferred from one organism to another, which can occur naturally or in a lab.
  • B: A gene that always results from artificial selection and cannot occur in nature.
  • C: A gene specifically transferred using CRISPR-Cas9 technology, only found in genetically modified organisms.
  • D: A gene that improves yield and always requires radiation or chemicals for its introduction.

Explanation

The text defines a transgene as 'a gene that has been transferred from one organism into another' and explicitly states that its introduction 'can occur in nature as well as in a genetic engineering laboratory,' citing the example of sweet potato and Agrobacterium.