K12 Comparative Embryology: Difference between revisions
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| valign=top|All human and animal embryos go through very similar stages of early development. See also [[K12 Human and Other Animal Development|Humans and Animal Embryology]]. | | valign=top|All human and animal embryos go through very similar stages of early development. See also [[K12 Human and Other Animal Development|Humans and Animal Embryology]]. | ||
What are the key things in development that we share? | What are the key things in development that we share? | ||
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I am currently looking to simplify concepts and include images on this page. I am happy to receive feedback as too what you may like to be included here. I have also begun to add some simple exercises that can be used in class to help understand concepts in embryonic development and comparison. Note some of the links on this page leave the K12 notes section and may be beyond the level of your students, bookmark this page to easily return here. This page can be printed using the lefthand menu "Toolbox" or [http://php.med.unsw.edu.au/embryology/index.php?title=K12_Comparative_Embryology&printable=yes Printable version]. | I am currently looking to simplify concepts and include images on this page. I am happy to receive feedback as too what you may like to be included here. I have also begun to add some simple exercises that can be used in class to help understand concepts in embryonic development and comparison. Note some of the links on this page leave the K12 notes section and may be beyond the level of your students, bookmark this page to easily return here. This page can be printed using the lefthand menu "Toolbox" or [http://php.med.unsw.edu.au/embryology/index.php?title=K12_Comparative_Embryology&printable=yes Printable version]. | ||
[[K12 Professional Development | [[K12 Professional Development 2016]] | [[K12 Professional Development 2014]] | ||
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== | ==Meiosis== | ||
In 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: | |||
# Genetic reorganisation - the genetic material (chromosomes) that you have from your mother and father are recombined. | |||
# Genetic reductive - the chromosome number is halved and only fertilisation will allow the paired chromosomes that we all contain in all our cells. | |||
==Mitosis== | |||
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. | |||
Mitosis has 2 key components: | |||
# 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. | |||
Revision as of 11:20, 5 September 2016
Embryology - 24 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:
MitosisMitosis 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. Mitosis has 2 key components:
Cite this page: Hill, M.A. (2024, April 24) Embryology K12 Comparative Embryology. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/K12_Comparative_Embryology
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