Question

in G1 phase cell cycle what would be the change in DNA content of cell cycle

Answer 1

Mitosis is the fundamental process by which most life forms grow and reproduce. Commonly referred to as cell division, mitosis occurs when one cell divides into two cells that have the same number of chromosomes as the parent cell. Mitosis is the primary form of reproduction for unicellular organisms, and it is the means of growth and regeneration for multicellular organisms. DNA, which must be passed to the resulting cell, is replicated during a preparatory period known as interphase.

The Blueprint of Life

Deoxyribonucleic acid, commonly known as DNA, is a long molecule composed of small sections known as nucleotides. The different combinations of nucleotides in DNA form a genetic code that governs all the actions performed by a cell and thus influences every aspect of an organism's life. DNA is like an instruction set that teaches each cell how to act so that it contributes to the overall well-being of an organism. Consequently, each new cell that is created through mitosis needs to receive an exact copy of this DNA.

From Birth to Reproduction

Interphase includes the majority of a cell's life, from its generation following mitosis to the final preparations for its own reproductive process. For most cells, interphase is divided up into three sub-phases: G1, S and G2. The G1 phase is the long period in which a cell matures following mitosis and performs the ordinary functions associated with its particular role as an individual member of an ecosystem or as a component of a higher organism. Eventually, the cell must turn its attention to reproduction. This is when it enters the S phase.