K12 Comparative Embryology: Difference between revisions
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==Mitosis== | ==Mitosis== | ||
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Mitosis is the type of normal cell division that allows growth and development of all animal embryos. | | Mitosis is the type of normal cell division that allows growth and development of all animal embryos. | ||
After the first cell has been formed by the egg (oocyte) and sperm (spermatozoa) fusing, every cell division in the embryo forms 2 genetically identical daughter cells. | After the first cell has been formed by the egg (oocyte) and sperm (spermatozoa) fusing, every cell division in the embryo forms 2 genetically identical daughter cells. | ||
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# Chromosome duplication - has to occur before cell division can occur. | # Chromosome duplication - has to occur before cell division can occur. | ||
# Mitosis - a set of 5 standard phases dividing the nucleus (and the chromosomes it contains) before the cytoplasm divides. | # Mitosis - a set of 5 standard phases dividing the nucleus (and the chromosomes it contains) before the cytoplasm divides. | ||
| width=310px|<html5media height="300" width="300">File:Mitosis 11.mp4</html5media> | |||
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==Patterning== | ==Patterning== | ||
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Revision as of 11:37, 5 September 2016
Embryology - 25 Apr 2024 Expand to Translate |
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K12 Professional Development 2016
Introduction
All human and animal embryos go through very similar stages of early development. See also Humans and Animal Embryology.
This page introduces a few of the concepts of development shared with all animals.
MeiosisIn the male and female in all animals (and plants) that reproduce sexually to form an embryo, these very first cells form by meiosis. Meiosis a reductive form of cell division that only occurs in the egg (oocyte) and sperm (spermatozoa) and allows new genetic combinations of offspring to be generated. Meiosis has 2 key components:
Mitosis
Patterning
Cite this page: Hill, M.A. (2024, April 25) Embryology K12 Comparative Embryology. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/K12_Comparative_Embryology
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