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When replicating or during transcription, DNA needs to uncoil in order to give the proper code. When the chromosomes are condensed, it cannot uncoil itself to give any sort of message. In order for the cell to remain functional, it must be able to code DNA.
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Why are chromosomes not condensed during all stages of the cell cycle?
Chromosomes are not condensed during all stages of the cell cycle because they need to be accessible for processes like DNA replication and gene expression. When chromosomes are condensed, it makes it difficult for the cell to carry out these essential functions.
Can you see chromosomes with a light microscope during cell cycle?
NO light microscope can not magnify the image to see chromosomes. You can see with fluorescence microscopes to observe them during cell cycle. Light microscope is helpful to check the whole living cell.
Chromatin is found in what phase of the cell cycle?
Chromatin is found during the interphase of the cell cycle, which is divided into three stages: G1, S, and G2. Chromatin is the complex of DNA and proteins that makes up the chromosomes in a non-condensed form during interphase.
Which three phases are individual chromosomes no longer visible?
During interphase, chromosomes are not visible as distinct structures. Instead, the DNA is in the form of chromatin, a less condensed state where individual chromosomes cannot be seen.
What are the stages in animal mitosis?
The same as for any other type of mitosis. Mitosis is mitosis.... Mitosis is the duplication of a single cell without sexual recombination of DNA. In some species, mitosis can be a form of reproduction (asexual). In humans, mitosis is how you grow and repair wounds.
Are chromosomes equally distributed in mitosis or interphase?
Chromosomes are equally distributed during mitosis, specifically during the metaphase and anaphase stages, when sister chromatids are separated and pulled to opposite poles of the cell. In contrast, during interphase, chromosomes are not evenly distributed, as they exist in a less condensed form called chromatin and are replicated in preparation for cell division. Thus, the equal distribution of chromosomes occurs specifically during mitosis, not interphase.
Why are chromosomes not condensed during all stages of the cell cycle?
Chromosomes are not condensed during all stages of the cell cycle because they need to be accessible for processes like DNA replication and gene expression. When chromosomes are condensed, it makes it difficult for the cell to carry out these essential functions.
During which phase of mitosis are chromosomes attaching to the spindle?
Chromosomes attach to the mitotic spindle during the metaphase of mitosis. Part of the answer depends on how you define the stages of mitosis and not everybody does this the same way. The short answer is all of them.
The phase during mitosis in which DNA separates into pairs of chromosomes is?
The phase during mitosis in which DNA separates into pairs of chromosomes is called prophase. During prophase, the chromosomes condense and become visible as distinct structures before the actual separation occurs during later stages of mitosis.
What is the role of the spindle during mitosis?
It provides a "scaffolding" for the attachment and movements of the chromosomes during the later mitotic stages.
What is extended chromosome?
An extended chromosome refers to the relaxed, less condensed form of a chromosome found during certain stages of the cell cycle, particularly during interphase. In this state, chromatin is less tightly packed, allowing for gene expression, DNA replication, and other cellular processes. This contrasts with the highly condensed form of chromosomes observed during mitosis, which facilitates their segregation during cell division. Extended chromosomes enable the accessibility of genetic information for cellular functions.
Can you see chromosomes with a light microscope during cell cycle?
NO light microscope can not magnify the image to see chromosomes. You can see with fluorescence microscopes to observe them during cell cycle. Light microscope is helpful to check the whole living cell.
What are the 4 stages of mitosis for an animals cell ad plant?
The four stages of mitosis for both animal and plant cells are prophase, metaphase, anaphase, and telophase. In prophase, chromatin condenses into chromosomes. During metaphase, chromosomes align at the cell's equator. Anaphase sees the chromosomes separate and move to opposite poles. Finally, during telophase, the nuclear envelope re-forms around each set of separated chromosomes.
Chromatin is found in what phase of the cell cycle?
Chromatin is found during the interphase of the cell cycle, which is divided into three stages: G1, S, and G2. Chromatin is the complex of DNA and proteins that makes up the chromosomes in a non-condensed form during interphase.
Which three phases are individual chromosomes no longer visible?
During interphase, chromosomes are not visible as distinct structures. Instead, the DNA is in the form of chromatin, a less condensed state where individual chromosomes cannot be seen.
What happens durring mitosis?
Mitosis is the division of the chromosomes in the nuclei. There are 5 stages in mitosis. Interphase, prophase, metaphase, anaphase, and telophase.
What disintegrates in prophase?
During prophase of mitosis, the nuclear envelope begins to disintegrate, allowing the chromosomes, which have already condensed and become visible, to separate and move toward the cell's equatorial plane. Additionally, the nucleolus disappears, and the mitotic spindle starts to form as microtubules extend from the centrosomes. These changes prepare the cell for the subsequent stages of mitosis.
