How is the sperm genetically different fro the egg?? No spam plz...
Answers
MALES:-
WHAT IS A SPERM CELL?
A sperm cell is the male sex cell. All animals (and many other types of organisms) produce what are called sex cells. Sex cells are the cells, that, when combined, produce a completely new organism. For example, your mother and every other human female carry egg cells (female sex cells) in their ovaries. Your father and every other human male carry sperm cells, or male sex cells, in their testes. When an egg cell and a sperm cell unite, the two combine to form an embryo or an unborn, developing organism. At this point, the embryo is able to develop into a fully formed offspring of its parents. When the cells combine in a chicken, a chick is the result. When the cells combined in your mother's body, you were the result.
FEMALES:-
Did you know that a human female already has all of the oocytes that she will make in her entire life before she is even born? In this lesson, you'll learn how the human body produces an ovum through the process of oogenesis. You'll also learn how polar bodies help to ensure that female gametes are of high quality even though they are not produced in high quantities.
The Ovum.
Oogenesis is the process by which the , or ova, are created. The female gamete is called an ovum. Sometimes people will refer to female gametes as eggs, but the term egg can include more than one stage of development, and the definition of an egg also changes depending on the type of organism.
For example, the entire prenatal development of birds occurs inside an egg, but in placental mammals, after the egg is fertilized and starts dividing, nobody calls it an egg anymore. So, we're going to use the more precise term for a mature female gamete which is ovum (or ova for the plural form). Now you may recall, each ovum must be haploid and contain only one copy of each chromosome.
During fertilization, it fuses with male gamete (also having haploid number of chromosomes) to form a zygote that has diploid number of chromosomes. Sperms and eggs are genetically different in terms of nature of sex chromosome. The sperm contain either X or Y-chromosome whereas an egg will always have an X-chromosome.