Biology 5090 · O Level · Inheritance

Inheritance — practice question

Which statements are correct? 1. Every chromosome has one DNA molecule. 2. A gene is a length of DNA located on a chromosome. 3. A gene includes smaller regions known as alleles.

  • A1, 2 and 3
  • B1 and 2 only
  • C1 and 3 only
  • D2 and 3 only

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