Answer:
Jacob and Monod were intellectually primed to draw the conclusions they did concerning regulation of the lac operon. In part, this was due to their fascination with mechanisms of enzyme regulation. They knew that the activity of some enzymes is regulated when their reaction product binds to the enzyme, changing its shape and therefore its activity. This knowledge allowed them to easily make the intellectual leap to propose B) allosteric regulation of the repressor
Explanation:
When we talk about the mechanisms of enzyme regulation, we refer to allosteric regulation of the repressor. The Allosteric control of transcriptional regulatory proteins allows organisms to react to changes in environmental and metabolic conditions. Also, it is s a thermodynamic phenomenon. When it binds one molecule, the affinity with which a protein binds to a second molecule is altered.
Rice Plants need to stand in a lot of water for growth. The Borders (bunds) of a rice field have to be Strong to hold the Water. The Farmer Planted Grass Plants on the Borders because, Grass has Fibrous roots which bind the soil of the bund and hold it together.
<u>Explanation</u> : The Answer itself Explains us well about why the farmer planted those grass plants (i.e.) to increase the strength of the soil. We know that Unity and Teamwork are Strong Words. The Soil and Fibrous Roots show us How Strong those Words are!
Moraines are made of till. They form when a glacier stays in one place for a long time and deposits a pile of till, then it retreats and leaves a moraine.
