Synapsis During Meiosis (VIDEO)
Caption
Chromosome motion can be directly observed by microscopic imaging of worms expressing fluorescent fusion proteins. Here, chromosome attachment sites at the nuclear envelope are marked by green fluorescent protein (GFP), while the chromosomes themselves are labeled with a red fluorescent protein. The movement is very obvious in the cells on the right side of this frame, which are actively pairing and synapsing their chromosomes, while the motion has slowed in the later-stage cells to the left, which have completed pairing and synapsis.
Credit
Abby Dernburg, UC Berkeley
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