Describe the chromatic that make up a chromosome when a cell is ready to split
In a cell that is ready to divide, the DNA is tightly packed into structures called chromosomes. These chromosomes are visible under a microscope and consist of two chromatids joined at a centromere. The DNA is condensed and organized to ensure equal distribution to the daughter cells during cell division.
The metaphase 2 stage of meiosis line up in single file. Each chromosome aligns individually along the metaphase plate, ready for separation into two daughter cells during anaphase 2.
Chromosomes are present in the cell cycle during the S (synthesis) phase and the M (mitotic) phase. In the S phase, DNA is replicated to produce identical sister chromatids, while in the M phase, the chromosomes condense and align for segregation into daughter cells during cell division.
During the G2 phase, the cell prepares for mitosis by replicating its DNA during the S phase, ensuring that each chromosome consists of two sister chromatids. The cell then checks for any DNA damage, repairs errors, and ensures that the replicated DNA is intact and ready for cell division. Additionally, the cell synthesizes necessary proteins and organelles needed for mitosis, such as the centrosomes that help organize the mitotic spindle.
During meiosis I, the cells at the end are not ready to function as gametes because they are still haploid and need to undergo meiosis II to further divide and produce mature gametes with the correct number of chromosomes.
Describe the chromatic that make up a chromosome when a cell is ready to split
the correct answer is 25
The chromatids are grouped together in the metaphase stage of mitosis. At this stage, the sister chromatids align along the center of the cell, ready to be separated and pulled towards opposite poles during anaphase.
In a cell that is ready to divide, the DNA is tightly packed into structures called chromosomes. These chromosomes are visible under a microscope and consist of two chromatids joined at a centromere. The DNA is condensed and organized to ensure equal distribution to the daughter cells during cell division.
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Chromatin and chromosomes are basically the same thing. The difference is that chromatin is unfolded, uncondensed, extended DNA while chromosomes are condensed DNA. Chromosomes are condensed chromatin and chromatin is unfolded chromosomes. The only difference I know is that chromatin are present normally in a cell, while chromosomes are there only when the cell is about to divide. When the cell is about to divide, the chromatin threads get organised into chromosomes. Utilizing their histone proteins to accomplish this, DNA first condenses into 10 nm strands and then into 30 nm strands, ready for Condensation and then Cytokinesis.
The metaphase 2 stage of meiosis line up in single file. Each chromosome aligns individually along the metaphase plate, ready for separation into two daughter cells during anaphase 2.
During early mitosis, chromatid pairs are held together by protein complexes called cohesins. Cohesins play a crucial role in chromosome segregation by keeping sister chromatids attached until they are ready to be separated during the later stages of mitosis.
Anaphase 1: Before Meiosis begins, each chromosome is duplicated, like in Mitosis. When the cell is ready for meiosis, each duplicated chromosome is visible under the microscope as two Chromatids. Anaphase 2:The two cells formed during Meioses 1 now begin Meiosis 2. The chromatids of each duplicated chromosome will be separated during this division. (Anaphase also means Meiosis. Meiosis 1 and Meiosis 2 for instance. i hoped this helped!)
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