G1 is
typically the longest phase of the cell cycle
. This can be explained by the fact that G1 follows cell division in mitosis; G1 represents the first chance for new cells have to grow. Cells usually remain in G1 for about 10 hours of the 24 total hours of the cell cycle.
Which is the longest phase?
During
interphase
, the cell undergoes normal growth processes while also preparing for cell division. It is the longest phase of the cell cycle, cell spends approximately 90% of its time in this phase. In order for a cell to move from interphase into the mitotic phase, many internal and external conditions must be met.
Is G1 S or G2 the longest?
S phase is the middle phase of the interphase in which cell duplicates its DNA and centrosomes. So, this is the key difference between G1 G2 and S phase.
G1 phase is the longest phase of interphase
while G2 phase is the shortest phase of interphase and S phase is the second-longest phase of the interphase.
Which is the longest phase in interphase?
S Phase (Synthesis of DNA)
The synthesis phase
of interphase takes the longest because of the complexity of the genetic material being duplicated. Throughout interphase, nuclear DNA remains in a semi-condensed chromatin configuration.
What is the longest phase of the cell cycle?
Interphase
is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells. The prefix inter- means between, so interphase takes place between one mitotic (M) phase and the next.
Which is the shortest phase?
In
anaphase
, the shortest stage of mitosis, the sister chromatids break apart, and the chromosomes begin moving to opposite ends of the cell. By the end of anaphase, the 2 halves of the cell have an equivalent collection of chromosomes. In telophase, 2 daughter nuclei form.
Why is G1 phase longest?
G1 is typically the longest phase of the cell cycle. This can be explained by the fact that G1 follows cell division in mitosis;
G1 represents the first chance for new cells have to grow
. … Usually, cells will take between 5 and 6 hours to complete S phase. G2 is shorter, lasting only 3 to 4 hours in most cells.
What is the shortest phase of meiosis?
(e)
Metaphase II
. Hint: The shortest phase is a part of Meiosis I in cell division. It involves the separation of homologous chromosomes, which start moving towards the opposite poles after they are aligned at the equator.
Why is cytokinesis the shortest phase?
The shortest phase of the cell cycle is cytokinesis
because all the previous stages help prepare the cell to divide, so all the cell has to do is divide and nothing else
. … Chromosomes are pulled to opposite ends of the cell.
Which is the shortest phase of cell cycle?
In concern to the above question, The correct answer is option D. Note: The shortest phase of the cell cycle is
the Mitotic phase (M phase)
and the longest phase of the cell cycle is G-1 phase.
What is the difference between G1 and G2 phase?
G1 phase is the first phase of the interphase of the cell cycle in which cell shows a growth by synthesizing proteins and other molecules. G2 phase is the
third phase
of interphase of the cell cycle in which cell prepares for nuclear division by making necessary proteins and other components.
What is the S phase?
S phase. In S phase,
the cell synthesizes a complete copy of the DNA in its nucleus
. It also duplicates a microtubule-organizing structure called the centrosome. The centrosomes help separate DNA during M phase.
Do organelles replicate in G1 or G2?
The
G1 phase stands for gap 1
and is when organelles replicate and the cell grows. The S phase stands for synthesis and is when DNA is replicated. The G2 phase stands for gap 2 and is when DNA is proofread and DNA damage is repaired.
What occurs in G1 S and G2 phases?
G1, S and G2 phases are all cumulatively referred to as
interphase involving the growth of a cell and the replication of its DNA
. … In S phase, the cell copies its DNA to produce two sister chromatids and replicates its nucleosomes. Finally, G2 phase involves further cell growth and organisation of cellular contents.
Why is anaphase the shortest phase?
Anaphase is considered the shortest stage of the cell cycle because this stage
involves only the separation of sister chromatids and their migration to the opposite poles of the cell
.
Which is the longest phase in prophase 1?
Diplotene phase
is the longest phase of prophase I of meiosis I in oocytes only and can last for months or years.
