<span>The DNA clamp/sliding clamp is the protein that is present at every replication fork and prevents DNA polymerase from dissociating but does not impede the rapid movement of the enzyme. It is a protein fold<span> that serves as a processivity promoting factor in </span><span>DNA replication.</span></span>
A close, long term relationship among two or more species that live and interact together
The option that u have selected is perfectly right.
During the krebs cycle NADH (Nicotinamide adenine dinucleotide) and FADH (<span>Flavin adenine dinucleotide) are made and used in the electron transport chan. Hope this helps!</span>