Answer:
The RecBCD enzyme of Escherichia coli is a helicase-nuclease that initiates the repair of double-stranded DNA breaks by homologous recombination. It also degrades linear double-stranded DNA, protecting the bacteria from phages and extraneous chromosomal DNA.
Explanation:
<span>Our brain is divided into two halves, as most of us know: the left and right side. Each side processes information very differently than the other, and the biggest difference is the visual aspect.
The right side of the brain looks at visual reference as a whole, whether it be a landscape, object, or piece of artwork, and then works its way into noticing finer details.
The left side on the other hand, first sees the details and puts them together to form the bigger picture.
In simple brain is that the left side is the "Organization and logic" side and right side is the "Visual reference " side.</span>
Every living thing on earth evolved from a single cell organism
In cell signalling, after a signal is sent, signal molecules bind to receptors on target cells and some activity in a target cell changes.
There are three stages in cell signalling :
1. The process of reception occurs when a signalling molecule from the extracellular environment is recognized by a cell. The chemical signal, which is also known as a ligand, is recognized as a signal when it attaches to a receptor protein either on the exterior of the cell or on the interior of the cell.
2. Transduction: This process occurs when the signalling molecule interacts with the receptor, which causes a change in the protein that makes up the receptor. The process of transduction is kicked off by this modification. In most cases, signal transduction occurs through a pathway that consists of numerous stages. The signal transduction route contains relay molecules, each of which influences the subsequent molecule in the pathway.
3. Reaction: In the third and last step, the signal causes a certain cellular response.
Learn more about cell signalling here :
brainly.com/question/14412293
#SPJ4
