Question

zygote, gamete, and fertilization are key terms associated with sexual reproduction. identify the definitions and examples of these three key terms in humans.

Explanation:

• Zygote: A zygote is a diploid cell formed by the fusion of two gametes (a sperm and an egg). In humans, it is the earliest stage of embryonic development. For example, when a sperm fertilizes an egg, the resulting cell is a zygote.
• Gamete: Gametes are haploid reproductive cells. In humans, the male gamete is the sperm, and the female gamete is the egg (ovum). These cells are produced through meiosis.
• Fertilization: Fertilization is the process by which a sperm and an egg fuse to form a zygote. In humans, this typically occurs in the fallopian tube.

Answer:

• Zygote: A diploid cell formed by sperm - egg fusion (e.g., after fertilization in humans).
• Gamete: Haploid reproductive cell (e.g., sperm in males, egg in females).
• Fertilization: Process of sperm - egg fusion (e.g., in human fallopian tube).