[Campbell Biology P.307] What is a key difference in how gametes are produced in the life cy... | Practice Question

What is a key difference in how gametes are produced in the life cycle of plants alternation of generations versus the life cycle of animals?

  • A: In plants, gametes are produced by meiosis; in animals, they are produced by mitosis.
  • B: In both life cycles, gametes are produced by meiosis.
  • C: In plants, gametes are produced by mitosis from a haploid organism; in animals, they are produced by meiosis from a diploid organism.
  • D: In both life cycles, gametes are produced by mitosis.

Explanation

In animals, diploid 2n germ cells undergo meiosis to produce haploid n gametes. In plants alternation of generations , the multicellular haploid n gametophyte produces haploid n gametes by mitosis, as there is no need for further chromosome reduction.