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Summary Course: Evolutionary Developmental Biology. Assignment: Mindmapping Evolutionary Terms. $7.50   Add to cart
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  3. Vrije Universiteit Amsterdam (VU)
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  5. Evolutionary Development Biology AB_1141 (AB_1141)

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Summary Course: Evolutionary Developmental Biology. Assignment: Mindmapping Evolutionary Terms.
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  • Course
  • Evolutionary Development Biology AB_1141 (AB_1141)
  • Institution
  • Vrije Universiteit Amsterdam (VU)

Course: Evolutionary Developmental Biology. course code: AB_1141 includes: Mindmap and description about the hox genes, the snake body plan, A-P and D-V axis formation and the limbs & appendages. Assigment in the first year of biomedical sciences at the VU Amsterdam.

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Document information

  • April 10, 2022
  • 2
  • 2021/2022
  • Summary

Subjects

  • snake
  • snake body plan
  • hox genes
  • limbs
  • appendages
  • a p
  • d v axis
  • mindmap
  • evolution
  • evolutionary
  • evolutionary terms
  • mindmapping
  • biomedical sciences
  • vrije universitei
  • evo
  • evolutionary developmental biology

Written for

  • Vrije Universiteit Amsterdam (VU)
  • Bachelor Biomedical Sciences
  • Evolutionary Development Biology AB_1141 (AB_1141)
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Hox genes and segmentation
Organisms can protect their organs through segmentation. Hox genes help control and organise the
body plan. The mind map first starts with ‘homeosis’, the transformation of one organ into another.
This then branches out into ‘homeotic genes’, which is a transcription factor and consists of a
homeobox and DNA binding domain. There are 2 different types of homeobox genes, Hox genes and
selector genes. Hox genes focus on the segment position while selector genes target segment
identity and have 2 complexes.
The collinearity is related to the gene order, which can either be positional or temporal. Evolution of
body plans is also due to more Hox genes and gene duplication. All Hox genes are orthologs as they
come from a common ancestor while vertebrates also have paralogs because of genome duplication.
Segment number relates to the rate of somite formation based on the total development time.
Variation in segment numbers can cause congenital cancer, having an extra cervical vertebra is an
example of this.

Limbs and appendages
Development of limbs and appendages is essential for good quality of life. In the mind map, three
branches have been made that are from top to bottom respectively in order. The first step in
embryonic development is positioning of the axis of the limbs and their buds. The posterior axis

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