Beyond the ladder-like structure described above ... For instance, most prokaryotes have a single circular chromosome, whereas most eukaryotes have one or more linear chromosomes, which often ...

Thus, the 30-nanometer fiber may be highly irregular and not quite the uniform structure depicted in instructive ... 10,000:1 (depending on the chromosome). This can be thought of as akin to ...

When stained, chromosomes show bands of light and dark areas. The dark bands indicate areas where the structure of the chromosome is dense. Each of the 23 chromosome types has a unique banding ...

The nucleus of one of your skin cells contains about two metres of DNA, so a chromosome is a very large molecule compacted into a very small space. Watch the video below to see how DNA can be ...

These motors play distinct roles in manipulating chromosome structure. Swimming motors, similar to RNA polymerases—enzymes that copy DNA sequences into RNA—help expand and contract the ...

For fixed set of genetic and environmental conditions, recombination in a particular region of a linkage structure (chromosome) tends to be constant and the same is then true for the crossing-over ...

Chances are you've seen an illustration of DNA's double-helix structure and even pictures ... bending and winding that takes place within a chromosome, which allows more than five feet of DNA ...