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Frage 3

Which description of a gene is correct?

  1. A structure that contains several chromosomes
  2. A complete cell that carries one instruction
  3. A nucleus from one parent
  4. A short section of DNA on a chromosomeRichtige Antwort

Erklärung

A gene occupies a length of the DNA within a chromosome, so it is the smaller of the two structures. The reversed description gets the sizes the wrong way round, since something holding several chromosomes would have to be larger than any single one of them, whereas a gene is only part of one.

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Frage 3: Which description of a gene is correct? · Genetics Basics · Questena