chromosomes
Chromosomes
The nuclear envelope.
In interphase, chromatin is visible in the nucleus, which consists of DNA and associated proteins. This chromatin condenses to form visible chromosomes during prophase, as the DNA becomes more tightly packed and distinct.
The centrosomes.
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nucleolus
Chromosomes condense and form during the prophase stage of mitosis. This is when the chromatin fibers in the nucleus tighten and become visible as distinct structures through a microscope.
Golgi body
Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.
The nucleus.
No, the nucleus does not disappear during mitosis or meiosis. It undergoes changes in structure and organization, such as condensation of the chromatin into visible chromosomes, but the nucleus remains present throughout these processes to ensure proper segregation of genetic material.
The small dot-like structure inside the nucleus is the nucleolus. It is responsible for producing ribosomes, which are essential for protein synthesis. The nucleolus is not surrounded by a membrane and can often be seen as a distinct structure within the nucleus.