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GO:0009987
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cellular process
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Any process that is carried out at the cellular level, but not necessarily restricted to a single cell. For example, cell communication occurs among more than one cell, but occurs at the cellular level. |
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GO:0008150
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biological_process
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A biological process is the execution of a genetically-encoded biological module or program. It consists of all the steps required to achieve the specific biological objective of the module. A biological process is accomplished by a particular set of molecular functions carried out by specific gene products (or macromolecular complexes), often in a highly regulated manner and in a particular temporal sequence. |
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GO:0022414
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reproductive process
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A biological process that directly contributes to the process of producing new individuals by one or two organisms. The new individuals inherit some proportion of their genetic material from the parent or parents. |
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GO:0019953
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sexual reproduction
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A type of reproduction that combines the genetic material of two gametes (such as a sperm or egg cell or fungal spores). The gametes have an haploid genome (with a single set of chromosomes, the product of a meiotic division) and combines with one another to produce a zygote (diploid). |
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GO:0009988
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cell-cell recognition
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Cell recognition between cells. May involve the formation of specialized cell junctions. |
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GO:0008037
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cell recognition
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The process in which a cell in an organism interprets its surroundings. |
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GO:0007338
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single fertilization
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The union of male and female gametes to form a zygote. |
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GO:0009566
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fertilization
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The union of gametes of opposite sexes during the process of sexual reproduction to form a zygote. It involves the fusion of the gametic nuclei (karyogamy) and cytoplasm (plasmogamy). |
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GO:0035036
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sperm-egg recognition
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The initial contact step made between the sperm plasma membrane and outer layer of the egg during fertilization. |
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GO:0007339
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binding of sperm to zona pellucida
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The process in which the sperm binds to the zona pellucida glycoprotein layer of the egg. The process begins with the attachment of the sperm plasma membrane to the zona pellucida and includes attachment of the acrosome inner membrane to the zona pellucida after the acrosomal reaction takes place. |
