NEET BIOLOGY

Detailed explanation-1: -Different cells take different lengths of time to complete the cell cycle.

Detailed explanation-2: -Unicellular organisms (like bacteria, yeast and archaea) typically grow using a method called binary fission. Here each single cell (mother cell) expands, replicates its genetic material, and divides into two cells (daughter cells). In this way, each time a new generation is produced the population doubles (Fig.

Detailed explanation-3: -A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

Detailed explanation-4: -DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA.