Measuring the strength needed to move chromosomes

(PhysOrg.com) -- It`s about as long as the width of a human hair and only half that length across. So it`s tiny - measured in millionths of a meter - and extremely tricky to manipulate. But the meiotic spindle plays so irresistibly important a role in separating our chromosomes during cell division that scientists are compelled to try to study it.

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