The event when a sperm fertilizes an egg and forms a zygote is called what?

The event when a sperm fertilizes an egg and forms a zygote is called what?

• A. Conception
• B. Fertilization
• C. Implantation
• D. Gametogenesis

Answer: (A)

Fertilization is the event where a sperm merges with an egg to form a zygote. This zygote contains a full set of chromosomes and begins the new organism’s development. Conception is a term often used to describe the start of pregnancy, which people sometimes equate with fertilization, but the precise biological event is fertilization. Implantation happens later, when the developing embryo attaches to the uterine lining. Gametogenesis is the creation of sperm and eggs, not the fertilization itself.

Fertilization is the event where a sperm merges with an egg to form a zygote. This zygote contains a full set of chromosomes and begins the new organism’s development. Conception is a term often used to describe the start of pregnancy, which people sometimes equate with fertilization, but the precise biological event is fertilization. Implantation happens later, when the developing embryo attaches to the uterine lining. Gametogenesis is the creation of sperm and eggs, not the fertilization itself.