Flashcards
Germ Cells
Flashcards do conjunto (12)
- 1In C. elegans what two cells are formed in the first asymmetrical division?AB and P1
(anterior and posterior)
- 2P-cell lineage cells (C. elegans) contain ________ _________ to block transcription and keep the cell totipotentCytoplasmic determinants
eg. PIE-1
- 3In Drosophila _______ _______ forms in the posterior regionPole plasm
- 4Which gene is required for the formation of pole plasm in Drosophila?Germ cell-less
- 5_____ and it's homologues is important in preventing mitosis and transcription during germ cell developmentNanos (drosophila)
Seen via in situ hybridisation in Xenopus embryos
- 6Xenopus cells in the ______ pole take up germ plasm and become ______________Vegetal pole
Primordial Germ Cells (PGCS) - 7Xenopus germ cells migrate via the ____________ to reach the endoderm, undergoing ______ _________Cleavage furrow
Convergent extension
- 8After specification the germ cells migrate to the _________Gonadal niche
(protective space) - 9In Drosophila, where do the germ cells attach in males and females?Males - Hub cells
Females - Stromal cap - 10Human germ cells migrate via the gut and enter the ______ _______ when they receive a chemoattractant signal eg. ______Genital ridges
Kit ligand
- 11A _______ may grow if germ cells get 'stuck' when migrating out of the gut or if the protective niche malformsTeratoma
(embryonic cancer)
- 12Epigenetics is involved in 'silencing' the genes in germ cells. This involves...Histone modification
DNA methylation
Informações
- Descrição
- FlashCards sobre Germ Cells, criado por Nicola E Davies em 25-05-2015.
- Criado por
- Nicola E Davies
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