Actually, it only takes one sperm to fertilize the egg, but the problem is the journey to the egg. The male ejaculates so many sperm because most of them die on the way there, the lucky one that gets there cause the fertilization.
Only one.
Only one sperm is required to fertilize an egg. One is both necessary and sufficient in order for an egg to be fertilized. But in order to be confident that one will make it, you need a certain minimum sperm count.
Sperm have about three days to make it to the egg for fertilization before the egg passes out of the uterus and dies.
In plants, fertilization occurs when one sperm cell from a pollen grain fuses with an egg cell to form a seed. Therefore, only one sperm cell is needed to fertilize one egg cell and produce a seed.
That is a good question. Both egg and sperm has the same number of chromosomes. But then the size of the egg is very big compared to sperms. Here the egg has lot of food material stored in them. that is necessary for cell multiplication after the conception. sperms has to run fast for fertilization. You can not run fast with some heavy weight on your back. Also the number of the sperms is very high and so many big sperms will create the problem of accommodation in the semen.
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For a test tube baby, also known as in vitro fertilization (IVF), typically only one sperm is needed to fertilize one egg. However, multiple sperm are often collected to increase the chances of successful fertilization, as not all sperm will successfully penetrate the egg. In some cases, intracytoplasmic sperm injection (ICSI) is used, where a single sperm is directly injected into an egg to facilitate fertilization. Overall, the number of sperm used can vary depending on the specific IVF technique and the individual circumstances.
Sperm cells are produced by millions a day because it takes a many number of them to get through to find a female egg for fertilization. As the male gets older in age, the production of sperm will decrease.
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Mates are not needed for reproduction if you are Asexual. Asexual organisms,such as protists and many types of bacteria, can reproduce on their own- one parent- no fertilization is necessary.
Only one sperm unite with the egg at a time and this process is called fertilization. A zygote is formed after this union which later on develops in to an embryo.
Just one.