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What are four phases of the cell cycle and what happens in each phase?
G1 phase-the cell grows and begins replication process S phase- DNA process and replication begins. The cell has transferred all DNA to the cell being made. It makes an exact copy. G2 Phase-more growth takes place M phase (mitosis)-the chromatids line up and are ready to spilt into to daughter cells.
What happens during S phase in cell division?
The S phase stands for synthesis. DNA replicates itself in this stage of the cell cycle. After DNA has replicated itself, the cell can proceed to mitosis and divide into two daughter cells that each have one complete and identical copy of DNA.
What phase of the cell cycle do centromeres divide?
It depends on whether you're talking about mitosis or meiosis. In mitosis, it is during anaphase. In meiosis, where the cell divides twice, centromeres aren't separated until anaphase II. In anaphase I, chromosomes are arranged as tetrads, and these tetrads are pulled apart to create two daughter cells, each with a full copy of the original cells' diploid chromosome.
What happens in meiosis during telophase?
During telophase the cell membrane gets "pinched" and the organelles and DNA are split. following telophase is cytokinesis when the cell membrane is sealed off and the mother cell becomes two sister cells.
Why is the s phase so important?
With twice the amount of chromosomes in the parent cell, each daughter cell can have a normal number of chromosomes after the cell splits in mitosis.
What are four phases of the cell cycle and what happens in each phase?
G1 phase-the cell grows and begins replication process S phase- DNA process and replication begins. The cell has transferred all DNA to the cell being made. It makes an exact copy. G2 Phase-more growth takes place M phase (mitosis)-the chromatids line up and are ready to spilt into to daughter cells.
What happens in meiosis during phase 1?
The homologous pairs of chromosomes line up together forming tetrads. During this time, chromatids from the homologous chromosomes cross over and exchange segments so that each chromatid contains both maternal and paternal DNA.
What are the four phases of the cell cycle and what happens in each?
G1 phase-the cell grows and begins replication process S phase- DNA process and replication begins. The cell has transferred all DNA to the cell being made. It makes an exact copy. G2 Phase-more growth takes place M phase (mitosis)-the chromatids line up and are ready to spilt into to daughter cells.
What is happens during the s phase of the cell cycle?
DNA is replicated.
What happens during S phase in cell division?
The S phase stands for synthesis. DNA replicates itself in this stage of the cell cycle. After DNA has replicated itself, the cell can proceed to mitosis and divide into two daughter cells that each have one complete and identical copy of DNA.
What occurs during the phase of the cell cycle?
A cell's DNA is copied during this phase. At the end of this phase, each chromosomes consists of two chromadtids attached at he centromere.
What important event happens in S- Phase of the cell cycle?
DNA replication takes place during the synthesis phase of the cell cycle. The cell also forms a second centrosomeduring this phase.The synthesis phase is often written as S phase. It occurs after the first growth (G1) phase, and therefore about midway through interphase.At the start of the S phase, each chromosome has only one DNA molecule, but by the end of the S phase each has two, which, barring copying errors, are genetically identical, i.e. they have identical base sequences.The doubling of the DNA and the centrosome constitute preparations for a subsequent cell division (mitosis or meiosis). A cell that is not due to divide will not go through an S phase.
Which phase has individual chromatids and move to each end of the cell?
Anaphase II
What phase of the cell cycle do centromeres divide?
It depends on whether you're talking about mitosis or meiosis. In mitosis, it is during anaphase. In meiosis, where the cell divides twice, centromeres aren't separated until anaphase II. In anaphase I, chromosomes are arranged as tetrads, and these tetrads are pulled apart to create two daughter cells, each with a full copy of the original cells' diploid chromosome.
What happens as you move from the outline phase to the draft phase?
each rough idea from the outline phase must be woven into paragraph in the draft phase
What is the phase when there is one set of single stranded chromosomes at each end of the cell?
telophase
What occurs in each 3 main stages of cell cycle?
The three main stages of cell cycle are interphase, mitosis and cytokinensis.Interphase is made up of three stages - G1, S, and G2G1 phase - The first phase of the cell cycleThe cell prepares itself for the synthesis stage of the cell cycle. The cell checks to see if it has all materials required for synthesis.S phase - the DNA is copied so that at the end of this cycle each daughter cell has a complete set of chromosomes.G2 phase - The second growth phase of the cell cycleIn this phase the cell prepares itself for physical separation of the cell to form two daughter cells.MitosisIn this phase the pairs of chromosomes attach themselves to fibers that pull the sister chromatids to the opposite sides of the cell.CytokinensisThe cytoplasm then divides into two forming two daughter cells.
