How is a multiprotein complex which plays a critical role in sister chromatid alignment called?

What would you call a collection of fibers that line the inner nuclear membrane?

An enzyme which can relax negative supercoils?

Regions of DNA that bind to the nuclear matrix, or nucleoskeleton?

Number of times a particular base sequence appears throughout the genome?

Specialized regions at the end of linear chromosomes, which prevent chromosomal rearrangements such as translocation and chromosome shortening?

A highly compacted chromosome found inside a bacterial cell:

A segment of chromosomal DNA folded into a structure that resembles a loop:

Or a tandem repeat, when a very short nucleotide sequence is repeated many times in a row: