[Campbell Biology P.314] What is independent assortment of chromosomes? | Practice Question

What is independent assortment of chromosomes?

  • A: The process where homologous chromosomes exchange genetic material.
  • B: The random orientation of homologous chromosome pairs at the metaphase I plate.
  • C: The separation of sister chromatids during anaphase II.
  • D: The fact that mutations are the original source of all genetic diversity.

Explanation

The text defines independent assortment as 'the random orientation of pairs of homologous chromosomes at metaphase of meiosis I'. Figure 13.11 visually demonstrates how these two equally probable arrangements lead to different combinations of chromosomes in the daughter cells.