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Developmental Mechanisms of Evolutionary Change

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BIOL 370 Developmental Biology Topic #22 Developmental Mechanisms of Evolutionary Change Lange Figure 19.9 Correlation between beak shape and the expression of ... – PowerPoint PPT presentation

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Title: Developmental Mechanisms of Evolutionary Change


1
Developmental Mechanisms of Evolutionary Change
BIOL 370 Developmental Biology Topic 22
  • Lange

2
Figure 19.9 Correlation between beak shape and
the expression of Bmp4 in Darwins finches
3
Figure 19.10 Correlation between beak length and
the amount of calmodulin (CaM) gene expression in
Darwins finches
4
Figure 19.11 Role of BMP4 and calmodulin (CaM)
in beak evolution in Darwins finches
5
Allometry is the study of the relationship of
body size to shape, anatomy , physiology and
finally behaviour, first outlined by Otto Snell
in 1892, D'Arcy Thompson in 1917 and Julian
Huxley in 1932.
6
Figure 19.12 Allometric growth in the whale head
7
Figure 19.19 Extra cervical ribs are associated
with childhood cancers
8
Figure 19.23 Mice with mutations in the leptin
genes are genetically obese
9
End.
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