Some steps involved in the Process of Fertilization: 1. Zygote. 2.Morula 3.Oocyte 4.Fertilization 5. Cleavage 6.Blastocyst. The order in which the steps numbered above occur in the process of fertilization is.
Biology · Middle School · Mon Jan 18 2021
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The correct order of the steps in the process of fertilization is:
- Oocyte
- Fertilization
- Zygote
- Cleavage
- Morula
- Blastocyst
Here's a brief explanation of each step:
- Oocyte: The oocyte is the unfertilized egg cell.
- Fertilization: Fertilization occurs when the sperm cell penetrates the oocyte, resulting in the formation of a zygote.
- Zygote: The zygote is the diploid cell formed by the fusion of the sperm and egg nuclei.
- Cleavage: The zygote undergoes a series of mitotic cell divisions called cleavage, leading to the formation of a multicellular structure called the morula.
- Morula: The morula is a solid ball of cells that forms after several rounds of cleavage.
- Blastocyst: The morula undergoes further cell divisions and forms a fluid-filled structure with an inner cell mass, known as the blastocyst. The blastocyst is a stage in embryonic development that eventually implants into the uterus.
This sequence of events represents key stages in the early development of an organism following fertilization.