usually by their 40's or 50's
U r lucky I just learned this in Science. The answer is Testes.
Gametes are haploid cells produced by the process of meiosis. They unite during fertilization to form a diploid zygote, which divides to form the embryo, and is the first cell of the new offspring of the organisms that produced the gametes. For example, human females produce ova, the female gametes, and human males produce sperm cells, the male gametes. During fertilization, one ovum and one sperm cell unite to form a zygote which divides by mitotic cell division, forming the embryo. The baby that is produced is not considered an offspring of the gametes, but an offspring of the mother and father that produced it.
no the oogamous
B. A human sperm cell and a human ovum are types of gametes. Gametes are reproductive cells that fuse during fertilization to form a new organism. In the case of humans, sperm cells are the male gametes and ovum (egg) cells are the female gametes.
23, there are 23 chromosomes in human gametes
U r lucky I just learned this in Science. The answer is Testes.
Gametes in humans are cells that fuse with other during fertilization (the reproductive process). The respective gametes are egg shaped for females and tadpole shaped for males.
The human gametes are Male gametes are sperm and female gametes are eggs. And the gametes chromosome numbers are 42.
In the case of human males, in the man's testicles. In the case of females, in the woman's ovaries.
In human beings, the females have two X chromosomes and the males have one X and one Y chromosome. Therefore, the females are XX and the males are XY. The gametes, as we know, receive half of the chromosomes. The male gametes have 22 autosomes and either X or Y sex chromosome. Type of male gametes: 22+X OR 22+ Y. However, since the females have XX sex chromosomes, their gametes can only have X sex chromosome. Type of female gamete: 22+X Thus, the mother provides only X chromosomes. The sex of the baby is determined by the type of male gamete (X or Y) that fuses with the X chromosome of the female.
gametes are produced in the ovaries and testes
Gametes are haploid cells produced by the process of meiosis. They unite during fertilization to form a diploid zygote, which divides to form the embryo, and is the first cell of the new offspring of the organisms that produced the gametes. For example, human females produce ova, the female gametes, and human males produce sperm cells, the male gametes. During fertilization, one ovum and one sperm cell unite to form a zygote which divides by mitotic cell division, forming the embryo. The baby that is produced is not considered an offspring of the gametes, but an offspring of the mother and father that produced it.
no the oogamous
B. A human sperm cell and a human ovum are types of gametes. Gametes are reproductive cells that fuse during fertilization to form a new organism. In the case of humans, sperm cells are the male gametes and ovum (egg) cells are the female gametes.
Meiosis is used to make gametes in the human body. The gametes will either be sperm or eggs depending on the gender.
It gives us a selective advantage as any grandmother can attest.
23, there are 23 chromosomes in human gametes