Why is it necessary for chromosomes to duplicate?
DNA replication is an essential part of both mitosis and meiosis. It ensures that each daughter cell has the correct number of chromosomes. To replicate the DNA in mitosis, each chromosome replicates so that the new chromosome is attached to the original one at the centromere.
Why is it crucial that DNA replicates itself exactly?
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
Why is it important that chromosomes duplicate before mitosis?
Mitosis is a form of cell division that occurs in living organisms, and it allows for growth, development, and the replacement of dead or dying cells. Before mitosis begins, the chromosomes (genetic information) in the cell must be copied.
Why is it very important to duplicate the chromosomes before the cell undergo cell division?
When one cell divides into two, both must have a copy of the genetic information. Therefore, before cell division occurs, the genes must also make duplicates of themselves so that all of the important genetic information ends up in each of the new cells.
Why is it necessary for the cell to grow and duplicate its DNA before the start of meiosis?
DNA replicates before a cell divides to give a complete set of genetic instructions to each daughter cell. If a cell begins meiosis without duplicating its DNA, the two resulting cells would have insufficient DNA to develop properly, as there would only be one copy of each chromosome in the parent cell.
What are the importance of DNA copying in reproduction?
The copying of DNA during reproduction is important because the replication of DNA ensures that each daughter cell formed at the end of cell division, receives an equal amount of DNA. The daughter cells won’t receive all necessary genes if by chance DNA won’t be copied.
Why it is necessary to double the amount of genetic material before mitosis begins?
The S Phase of Interphase
In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells. … The aim of this process is to produce double the amount of DNA, providing the basis for the chromosome sets of the daughter cells.