When bacterial DNA is labeled with radioactive atoms, it takes its own picture. Autoradiographs reveal that the bacterial chromosome is a single very long DNA molecule and show how it is duplicated ...

In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one.

The appropriate volume of each labeled pool (to contain 100 ng of ... channel was viewed individually and the signal for each chromosome recorded manually. This was important to resolve any ...

Brown says that the study “provides [evidence] for a very interesting concept: that XIST, acquired somatically, can still be perhaps functioning to silence a chromosome.” She says that this raises the ...

Fluorescently labeled cells can also be sorted into separate ... In addition, this approach can also be used to determine changes in chromosome size and number. Larger chromosomes contain a ...