Sexual reproduction involves both parents contributing equally to the DNA of the progeny. Each parent contributes a copy of the same gene, ensuring a combination of genetic material from both parents.
How does sexual reproduction ensure both parents contribute equally to the DNA of the progeny?
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Sexual reproduction ensures both parents contribute equally to the DNA of the progeny through the process of meiosis. During meiosis, specialized cells called gametes (sperm and egg cells) are formed. Each gamete contains half the genetic material of a somatic cell. During fertilization, a sperm cell from the father combines with an egg cell from the mother, resulting in the formation of a diploid zygote. As each parent contributes one set of chromosomes, the progeny inherits an equal combination of genetic material from both parents. This ensures genetic diversity and the integration of traits from both maternal and paternal sources.