Why Form 8815 Restrictions 2022-2023

When scientists began studying the way that bacterial cells protect themselves from different types of viral agents from bacteria phages they realize that inside bacterial cells are these special digestive proteins these special digestive enzymes known as restriction enzymes or restriction and the nucleases and what these restriction enzymes do is they are able to actually cut or cleave the viral DNA molecule into many different pieces thereby destroying that viral DNA and deactivating that viral DNA so one way that bacterial cells protect themselves from bacteria phages is by using these special enzymes we call restriction enzymes now because there are many different possibilities that a DNA sequence can consist of we have many many different types of restriction enzymes that exist in nature and each and every one of these restriction enzymes basically cleaves along a DNA molecule at a specific location on that double-stranded DNA molecule now many of these enzymes in our study of these restriction enzymes we realized that many of these restriction enzymes actually cut at palindromic sequences along that double-stranded DNA molecule and to see what we mean by a palindromic sequence of DNA let's take a look at the following diagram so let's suppose we have a we have a section a palindromic section of our double-stranded DNA so remember and any double stranded DNA molecule we have two single strands that run anti parallel with respect to one another so this blue strand begins at the 5 end and ends of the 3 end and this green strand begins at the 3 end and ends at the 5 and that's what we mean by anti parallel now we also have the base pairing between the two single strands and that's what holds the two strands together so we have the adenine...