Restriction endonucleases, also known as restriction enzymes, are enzymes that cleave DNA at specific recognition sequences or sites. These recognition sequences are typically palindromic sequences, and restriction enzymes cut the DNA at or near these specific sites. This is a fundamental tool in molecular biology and genetic engineering for manipulating DNA molecules.
So, the correct option is (B): cuts the DNA molecule at specific sites
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
Catalysts of biological systems can be known as Enzymes. Enzymes helps us to perform the huge variety of biochemical reactions that encompass in life are all mediated by a series of activities.
Following are the properties of enzymes: