Term
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Definition
mRNA that moves on the dysein motor protein
trans located to anterior of egg
-translated after fertilization
-up regulates hunchback and represses caudel
-important for segmentation |
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Term
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Definition
binds to kinesin and moves posterior where it joins wth nanos
-translated after fertilization
-represses hunchback, up regulates caudal
mutants lack an abdomen |
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Term
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Definition
| binding protein,oocyte nucleus migrates with gurken inducing follicles to be dorsal |
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Term
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Definition
| invagination of 16 most vegetal cells forning ventral furrow |
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Term
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Definition
deposited in oocyte
translated after fertilization
-only activated by toros-like protein in follicle cells at the poles |
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Term
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Definition
| inhibits tailess and huckebein gene |
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Term
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Definition
interact with each other to set 7 segementation domains
-initiated by biocoid and caudal protein
-first zygotic genes to be expressed along A-P axis
bicoid activates expression of hunchback
-hunchback turns on Giant and knirps
-knuppel appears at the lowest level of hunchback
-posterior end: caudal activates caudel and giant
cont....toros initiates expression of tailless and huckebein |
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Term
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Definition
14 segments controlling the head, abdomen and thoraic regions
-14 segments subdivided into 14 parasegments
(each parasegment are independent)
-reinforces 14 established parasegment genes (cell-cell contact)
-interactions take place between cells- cellular bastoderm |
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Term
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Definition
activation of pair rule genes by gap genes defines the 14 parasegmented region
expressed during cylce 13 |
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Term
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Definition
genes on choromosome 3(2 regions) specify body parts
antennapedia and bithorax region(muations of A=legs rather than antenna, BT mutations= fly with 3 wings |
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