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In sexual reproductiontwo parents donate genes to their young resulting in offspring with a mix of inherited genes. These genes are donated through a process called fertilization. In fertilization, male and female sex cells fuse to form a single cell called a zygote.

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Dulioust, A. Le Du, D. Costagliola, J.

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Sexual reproduction is the method by which living organisms produce offspring by combining the genetic information from two individuals of different sexes to create a new living entity. This process in most higher organisms involves the male producing a gamete that travels to fuse itself with a larger stationary gamete produced by a female. In humans, this process occurs when a sperm fertilizes an egg.

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The scrotum is a pouch consisting of skin and muscle that contains the male testicles. It is located between the penis and the anus. A secondary ovarian follicle is a maturing ovarian follicle consisting of an oocyte surrounded by two or more layers of tall, supporting granulosa cells.

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The burden of falciparum malaria remains unacceptably high in much of sub-Saharan Africa and massive efforts are underway to eliminate the parasite. While symptoms of malaria are caused by asexual reproduction of the parasite, transmission to new human hosts relies entirely on male and female sexual-stage parasites, known as gametocytes. Successful transmission can be observed at very low gametocyte densities, which raises the question of whether transmission-enhancing mechanisms exist in the human host, the mosquito, or both.

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Multicellular eukaryotic organisms have many different types of cells that perform different functions as they combine to form tissues. However, there are two main types of cells within the multicellular organism: somatic cells and gametes, or sex cells. Somatic cells make up the majority of the body's cells and account for any regular type of cell in the body that does not perform a function in the sexual reproductive cycle.

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All cells arise from other cells through the process of cell division. Meiosis is a specialized form of cell division that produces reproductive cells, such as plant and fungal spores and sperm and egg cells. In general, this process involves a "parent" cell splitting into two or more "daughter" cells. In this way, the parent cell can pass on its genetic material from generation to generation.

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The natural world revolves around sexual reproduction. Through it, the majority of species guarantee their survival. If we are to believe Freud, it also drives our own behaviour.

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