Cells tend to make mistakes copying nucleotides in the DNA.
DNA is copied
In Interphase.
During DNA synthesis, three primary types of mistakes can occur: base substitutions, where one nucleotide is incorrectly replaced with another; insertions, where extra nucleotides are added; and deletions, where nucleotides are missing. These errors can lead to mutations, potentially impacting gene function and organismal traits. Cellular proofreading mechanisms, such as DNA polymerases, help correct some of these mistakes, but not all errors are caught, which can result in lasting changes in the DNA sequence.
DNA is copied in the cell nucleus. This process is called DNA replication and occurs during the S phase of the cell cycle.
DNA Replication
DNA is copied
DNA is not copied during mitosis . Mitosis is meant for division of cell and DNA is divided in two daughter cells .
antisense
In Interphase.
The cellular machinery that replicates DNA has an error rate of about 1 mistake per 1 billion base pairs copied. This is due to the proofreading mechanisms in place to correct mistakes. However, mistakes can still occur, leading to mutations.
During DNA synthesis, three primary types of mistakes can occur: base substitutions, where one nucleotide is incorrectly replaced with another; insertions, where extra nucleotides are added; and deletions, where nucleotides are missing. These errors can lead to mutations, potentially impacting gene function and organismal traits. Cellular proofreading mechanisms, such as DNA polymerases, help correct some of these mistakes, but not all errors are caught, which can result in lasting changes in the DNA sequence.
DNA is copied once during the process of cell division.
DNA is copied in the cell nucleus. This process is called DNA replication and occurs during the S phase of the cell cycle.
DNA Replication
DNA replication
mRNA does not copy DNA, intead, mRNA is copied FROM DNR. The process is call translation.
Mitosis