Devo Lect 2 - Test organisms Flashcards Preview

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Flashcards in Devo Lect 2 - Test organisms Deck (7)
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2

Drosophila

Well established genetics, complete genome, long history, short life cycle, polytene chromosomes, mutant analysis

3

Polytene Chromosome

Salivary glands of drosophila make DNA copies without mitosis - instead of one strand you get 1000 identical copies together; can see banding patterns and chromosomal puffs

4

C. elegans

nematode, established genetics, complete genome, life cycle 3 days, hemaphrodite, complete fate map (made with laser or stains tests), mutant analysis

5

Xenopus laevis

Vertebrate, external eggs, many large eggs, clear shell, gene expression system (can insert proteins etc)

6

Gallus domesticus

Amniote, external development, can make windows in egg; chimera studies: add some cells from different species and trace their development

7

Mus musculus

Mammal, short lifespan; genome sequenced, very similar to humans; lots of transgenics and knockouts

8

Danio rerio (zebrafish)

embryological development 3 days; transparent embryos (easy to see and label); mutant analysis, molecular techniques (transgenenic, antisense, RNAi)