Sentences with phrase «pull pairs of chromosomes»
Sulforaphane seems to work by interrupting the tiny microtubules that normally pull pairs of chromosomes apart when cells divide.
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Perhaps most crucially, when cells divide, microtubules form the spindle structure that first aligns the chromosomes in the middle of the cell then pulls them apart, so that each new cell gets one chromosome from each pair.
They anchor strands of protein that attach to replicated chromosomes and help pull the paired chromosomes apart, so that each new cell gets just one copy of each chromosome.
Despite this hard work from dynein, in roughly one - quarter of the cells observed, the spindle was misaligned, even after the paired chromosomes were pulled to opposite sides of the cell in late anaphase.
Before dividing, pairs of identical chromosomes line up in the middle of the elongated cell, and the microtubules, emanating out from the centrioles on either side, help pull the chromosomes in opposite directions so that each new cell receives one member of each chromosome pair.
As mitosis progresses, the microtubules align the chromosomes along the mid-line of the cell, then shorten and pull the chromosome pairs at their centromeres to opposite sides of the cell.