Cell Cycle: Phases and Stages

What is the correct sequence of stages in interphase of the cell cycle?

Which stage of interphase involves the complete copying of DNA?

What is the main task performed by a cell during the G2 phase of interphase?

Which phase of the cell cycle involves organizing and condensing genetic material?

What does the 'S' in S Phase refer to in the context of the cell cycle?

Which phase allows cells to adjust their size according to nutrient availability and hormone signals?

What is the primary function of the G1 phase?

Which phase immediately follows the S phase?

What is the primary task of the M phase?

Which process ensures that each daughter cell receives an identical copy of the parent cell's genetic material?

What is the correct order of the main stages of the cell cycle?

Which phase is responsible for checking the quality of the replicated DNA?

What is the process of dividing the cytoplasm and organelles between the two daughter cells called?

During which phase does the cell decide whether to continue or halt the division process?

What is the term used to describe the period between two consecutive M phases?

Which phase involves the synthesis of additional enzymes and proteins required for proper cell division?

Cell Cycle

The cell cycle refers to the sequence of events that a cell undergoes from the moment it is formed to the point where it divides into two identical daughter cells. Throughout this process, the cell performs essential tasks such as growing, replicating its genome, and preparing for cell division. Here's a breakdown of the cell cycle, including its different phases and stages.

Phases of the Cell Cycle

The cell cycle consists of interphase and the mitotic phase. Interphase is further divided into three main stages: G1, S, and G2. During interphase, the cell grows, replicates its chromosomes, and prepares for cell division.

Interphase

G1 Phase

The cell starts interphase by preparing to divide. It grows physically larger, copies organelles, and makes the molecular building blocks it will need later. This stage also allows cells to adjust their size according to the nutrient availability and signal from other hormones.

S Phase

In this phase, the cell copies all its DNA. The 'S' stands for synthesis because during this time, each strand of double-stranded DNA acts as a template for the production of another identical strand, resulting in two complete sets of genetic material.

G2 Phase

Once the DNA has been copied, the cell moves into the G2 phase. During this period, the cell organizes and condenses the genetic material. It checks if the genetic material is properly copied and prepares itself to enter mitosis, which is the actual process of dividing.

Mitotic Phase

The mitotic phase consists of mitosis and cytokinesis.

Mitosis

During mitosis, the cell separates its DNA into two identical sets. This process involves a series of steps where the chromosomes condense, align at the center of the cell, separate, move towards opposite ends of the cell, and finally divide.

Cytokinesis

After mitosis, cytokinesis occurs where the cytoplasm divides, forming two new cells. The two daughter cells are genetically identical and each begins its own interphase to start the next round of the cell cycle.

Explore the cell cycle, a series of events that a cell undergoes from formation to division, including its key phases and stages such as G1, S, G2, mitosis, and cytokinesis. Learn about the processes involved in growth, DNA replication, and cell division.