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17 lut 2023 · DNA must replicate before cells divide so that the two resulting daughter cells contain the same genetic information as the parent cell. DNA replication occurs in the nucleus of all eukaryotic cells and the nucleoid of prokaryotes.
13 wrz 2023 · The primary function of DNA is to store and transmit genetic information from a parent cell to a daughter cell. DNA contains the instructions that determine an organism’s characteristics, such as its physical traits, behavior, and metabolic processes.
Predict DNA content of cells in different phases of mitosis, meiosis, and the cell cycle. Recall and describe the phases of the cell cycle, and predict outcomes if there is an error in a given stage of the cell cycle. Identify events in meiosis that could cause chromosomal nondisjunction.
17 mar 2022 · When a cell divides, it is important that each daughter cell receives an identical copy of the DNA. This is accomplished by the process of DNA replication. The replication of DNA occurs during the synthesis phase, or S phase, of the cell cycle, before the cell enters mitosis or meiosis.
The ability of each strand of a DNA molecule to act as a template for producing a complementary strand enables a cell to copy, or replicate, its genes before passing them on to its descendants. In the next chapter we describe the elegant machinery the cell uses to perform this enormous task.
The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells. These processes define the two major phases of the cell cycle.
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.
