what is located in the nucleus of a cell?
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The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.
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Nearly every cell in a person's body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
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All plant cells contain a nucleus, a structure that stores DNA and acts as a cell's command center. It is surrounded by the nuclear envelope and is filled with nucleoplasm. The nuclear envelope contains nuclear pores which allow molecules with the appropriate nuclear import and export signals in and out of the nucleus.
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Plant Cell Nucleus. ... Most of the nuclear material consists of chromatin, the unstructured form of the cell's DNA that will organize to form chromosomes during mitosis or cell division. Also inside the nucleus is the nucleolus, an organelle that synthesizes protein-producing macromolecular assemblies called ribosomes.
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The nucleus is the most important organelle in the cell. It contains the genetic material, the DNA, which is responsible for controlling and directing all the activities of the cell. All the RNAs needed for the cell are synthesised in the nucleus.
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Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Therefore, the nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.
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['The nucleus is an organelle found in most eukaryotic cells, the exception being red blood cells. ... ', "The primary functions of the nucleus are to store the cell's DNA, maintain its integrity, and facilitate its transcription and replication."]
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The cell is structural and functional unit of all living things. Cell Structural Overview: The major parts of a cell are the nucleus, cytoplasm, and cell membrane. Nucleus: The nucleus contains a nucleolus and is separated from the cytoplasm by the nuclear envelope.
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The organelles and cytosol, taken together, compose the cell's cytoplasm. The nucleus is a cell's central organelle, which contains the cell's DNA (Figure 1). Figure 1. Prototypical Human Cell.
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Organization of the Nucleus and Its DNA Like most other cellular organelles, the nucleus is surrounded by a membrane called the nuclear envelope. This membranous covering consists of two adjacent lipid bilayers with a thin fluid space in between them. Spanning these two bilayers are nuclear pores.
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It is found in both plant and animal cells. But in RBCs or Red Blood Cells the Nucleus (which contains the Nucleolus) is Enucleated.
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It stores the cell's hereditary material, or DNA, and it coordinates the cell's activities, which include intermediary metabolism, growth, protein synthesis, and reproduction (cell division). Only the cells of advanced organisms, known as eukaryotes, have a nucleus.
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Nucleus and Nucleolus The nucleus, formed by a nuclear membrane around a fluid nucleoplasm, is the control center of the cell. Threads of chromatin in the nucleus contain deoxyribonucleic acid (DNA), the genetic material of the cell.
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In eukaryotic cells, chromosomes are located in the nucleus, and are made up of chromatin.
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Color the pellicle blue. In the center of the cell is the nucleus, which contains the cell's DNA and controls the cell's activities. The nucleolus can be seen within the nucleus.
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Function of the Nucleus. The nucleus is an organelle found in eukaryotic cells. Inside its fully-enclosed nuclear membrane, it contains the majority of the cell's genetic material. ... The nucleus maintains the security of the genes and controls the functions of the entire cell by regulating gene expression.
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The nucleus is the heart of the egg cell; it contains most of the genetic material in the form of chromosomes. This is where the genes are situated. An egg, like a sperm, contains half the number of chromosomes as a normal cell, i.e. 23 each.