State the importance of chromosomal difference between sperms and eggs of humans.
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1. **Understanding Chromosomes**: Chromosomes are structures within cells that contain DNA, which is the genetic material responsible for inheritance. In humans, chromosomes come in pairs, with one set inherited from each parent.
2. **Chromosomal Composition of Gametes**: In humans, the male gamete (sperm) has either an X or a Y chromosome, while the female gamete (egg) always has an X chromosome. Therefore, the male's chromosomal composition is XY, and the female's is XX.
3. **Fertilization Process**: During fertilization, a sperm cell fuses with an egg cell. The combination of the chromosomes from these gametes determines the genetic makeup of the offspring.
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