Sentences with phrase «broken ends of the chromosomes»

Using sophisticated imaging technology, they were then able to watch as the broken ends of the chromosomes were reattached correctly or incorrectly inside the cells.

Not exact matches

In Cooper's lab, Godinho Ferreira worked to understand why telomeres function differently than deleterious chromosome ends generated by the abnormal breaking of chromosomes.

James Christiansen, professor of biology at Drake University in DesMoines, is studying how telomeres, the simple, non-genetic DNAsequences that sheathe the ends of chromosomes, function in reptiles.Each time a healthy human cell divides, it loses a little bit of thetelomere, until the strands are too short to protect the chromosomes.At that point the DNA in a cell begins to break down, which triggerssenescence and death.

In this situation, the movement of broken ends can cause pieces from different chromosomes to stick together, forming monster chromosomes that kill the cell.

However, in rare cases, the ends of the chromosome become either damaged or broken, and fuse together forming a circle, or ring.

They protect chromosome ends from being mistaken for broken pieces of DNA that would otherwise be fixed by cellular repair machinery.