Select all the statements that describe gametes produced by spermatogenesis. Genetic variation between sperm is partly due to genetic material moving across cytoplasmic bridges before spermiogenesis. Spermatocyte division during meiosis II results in the formation of four spermatids, each with half the genetic material of the parent cell. Chromosomal crossover during spermatocyte meiosis leads to different genetic combinations among individual sperm. Unequal distribution of chromosome copies during mitosis results in less genetic material in spermatozoa than in parent cells.

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