To become pregnant , sperm from a male has to meet an egg from a female. This can happen when a male and female have sexual intercourse, when the penis is in the vagina. If an egg has been released and is in the fallopian tube, one of these sperm may reach the membrane of the egg and get inside it. This process is called fertilisation. DNA, or genetic material, from the egg and sperm meet and join together. All babies get half their genes from their mothers and half from their fathers.
What Is Fertilization and How Does It Occur? What to Know
While you release only a single egg each month, your partner releases millions of sperm in a single ejaculation — all with an eye on that single prize. But only one of those sperm will be crowned the victor, and the odds are stacked against fertilization. Luckily, egg and sperm have developed some pretty cool tricks to give themselves a fighting chance. Read on to find out how fertilization actually works.
If you are on a fertility journey to start or expand your family, you know how special it is when conception takes place. Did you know…. When Sparks Fly So what happens when the lucky sperm finally gets to meet the egg? The magic of conception can happen any time in the week after sexual intercourse has taken place.
NCBI Bookshelf. Molecular Biology of the Cell. New York: Garland Science; Once released, egg and sperm alike are destined to die within minutes or hours unless they find each other and fuse in the process of fertilization. Through fertilization , the egg and sperm are saved: the egg is activated to begin its developmental program, and the haploid nuclei of the two gametes come together to form the genome of a new diploid organism.