Which of the following must occur before cell division?
The cell cycle has three phases that must occur before mitosis, or cell division, happens. These three phases are collectively known as interphase. They are G1, S, and G2.
Which 3 things happen during Stage 1 of the cell cycle?
A growing and dividing cell goes through a series of stages called the cell cycle . The first stages of the cell cycle involve cell growth, then replication of DNA .
Which are the main stages of the cell cycle check all that apply?
Interphase, mitosis, and cytokinesis are the main stages in the cell cycle. Metaphase and anaphase fall under mitosis, so they aren’t main stages of the cell cycle.
Which stage is the fastest in the cell cycle?
For the characteristic cell cycle time of 20 hours in a HeLa cell, almost half is devoted to G1 (BNID 108483) and close to another half is S phase (BNID 108485) whereas G2 and M are much faster at about 2-3 hours and 1 hour, respectively (BNID 109225, 109226). The stage most variable in duration is G1.
What is quiescent phase of cell cycle?
G0 (quiescent phase) also known as the inactive stage of the cell cycle, is the stage when the cell remains metabolically active, but do not proliferate unless called on to do so. Such cells are used for replacing the cells lost during injury.
What are the three parts of the cell cycle?
The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.
What are the two parts of cell cycle?
The cell cycle has two major phases: interphase and the mitotic phase (Figure 6.3). During interphase, the cell grows and DNA is replicated.
What type of cell never divides?
Heart Cells and Nerve cells rarely divide. You just studied 8 terms!
How do you know if a cell is metaphase?
Metaphase Under a Microscope Under the microscope, you will now see the chromosomes lined up in the middle of the cell. You will probably also see thin-stranded structures that appear to radiate outward from the chromosomes to the outer poles of the cell.
Which stage of mitosis is the longest?