(A) During replication, polymerase slippage and subsequent reattachment may cause a bubble to form in the new strand. Slippage is thought to occur in sections of DNA with repeated patterns of bases (such as CAG), represented here by matching colors. Then, DNA repair mechanisms realign the template strand with the new strand and the bubble is straightened out. The resulting double helix is thus expanded.
(B) Polymerase slippage, as theorized, cannot occur in DNA without repeating patterns of bases.آیا می خواهید مدیلیب را به صفحه اصلی خود اضافه کنید؟