explain why germ cells have only half the amount of DNA as compared to non reproductive body cells
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Typically, humans reproduction is sexual. It involves merging haploid gamete cells from each parent with half the normal number of chromosomes to make a new cell containing both parents' genetic material. This is a diploid zygote. The cells from each parent that combine to form the zygote are called gametes.
It’s a reproductive cell. In meiosis, a cell must be haploid, or have half the number of chromosomes. In humans, regular cells have 46 chromosomes. But egg and sperm cells, female and male gametes have 23, because they combine to form a diploid cell with 46 chromosomes.
Basically if two somatic cells(body cells) combined to form a zygote, the zygote would have twice the number of chromosomes needed in a person, and would have to self-abort.?
Almost all multicellular eukaryotic organisms that undergo sexual reproduction use gametes, or sex cells, to create offspring. Since two parents are necessary to create individuals for the next generation of the species, gametes are typically haploid cells. That way, each parent can contribute half of the total DNA to the offspring. When two haploid gametes fuse during sexual reproduction fertilization, they each contribute one set of chromosomes to make the single diploid zygote that has a full two sets of chromosomes.
It’s a reproductive cell. In meiosis, a cell must be haploid, or have half the number of chromosomes. In humans, regular cells have 46 chromosomes. But egg and sperm cells, female and male gametes have 23, because they combine to form a diploid cell with 46 chromosomes.
Basically if two somatic cells(body cells) combined to form a zygote, the zygote would have twice the number of chromosomes needed in a person, and would have to self-abort.?
Almost all multicellular eukaryotic organisms that undergo sexual reproduction use gametes, or sex cells, to create offspring. Since two parents are necessary to create individuals for the next generation of the species, gametes are typically haploid cells. That way, each parent can contribute half of the total DNA to the offspring. When two haploid gametes fuse during sexual reproduction fertilization, they each contribute one set of chromosomes to make the single diploid zygote that has a full two sets of chromosomes.
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