Practice Quiz

MCAT Biology

Category - Biology

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Which of the following best describes the formation of a zygote?
  1. A sperm cell nucleus and an egg cell nucleus fuse.
  2. A cell’s DNA replication and mitosis are accelerated.
  3. A succession of cell divisions produces a solid mass of cells.
  4. A cell with 46 chromosomes divides to form cells with 23 chromosomes each.
Explanation
Answer: A - A sperm cell nucleus and an egg cell nucleus fuse.
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