Cell nucleus

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    with tonic-clonic seizures, myclones,absence, visual hallucinations and drop attacks which is falling with weakness of the legs or knees. Which is defined as gathering of polyglucosan inclusion bodies refered as Lafora bodies are in the cytoplasm of cells in the central nervous system and other organs. The mutations that end up…

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    Deoxyribonucleic acid (DNA) is the hereditary material. It is a polynucleotide and is a double helix composed of two strand that run in opposite direction1. Each strand of DNA consist of a sugar molecule (deoxyribose), nitrogen base (adenine-A, guanine-G, thymine-T and cytosine-S) and a phosphate group. Adenine and guanine are double-ringed molecules known as purines while thymine and cytosine are single-ringed molecules known as pyrimidines1. Within the DNA molecule, the sugar molecules are…

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    H4 Histone Variants

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    distinct amino acid constitution. All histone families except for H4 histone have variant forms (Kamakaka and Biggins, 2005). Unlike core histones, which are only expressed during S phase, histone variants are continuously expressed throughout the cell cycle and incorporated into DNA in a replication-independent manner (Sansoni et al., 2014). A great number of histone variants have been discovered and well studied to date, as illustrated in Table 1. CenH3 is a ubiquitously expressed variant,…

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    Eukaryotic Chromosomes

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    Every living cell contains genetic information in the form of chromosomal DNA. Chromosomes can be circular in prokaryotic, or simpler single-celled organisms such as bacteria, but tend to be linear in more complex eukaryotic cells. The replicon, or the enzymatic complex that replicates DNA has limitations on its efficiency and capabilities. For example, eukaryotic DNA polymerase requires a short RNA primer to begin replication on the lagging strand, because of this replication cannot continue…

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    stain because they provide more visibility when looking under a microscope. 3. How many phases are in the Cell Cycle? There are five stages of the cell cycle which would be Interface, Prophase, Metaphase, Anaphase and Telophase. 4. From your studies, name the three phases of Interphase and what occurs during each of those phases. The three phases of interphase would be G1 where the cells grow, produce organelles, afterward it would be synthesis in this…

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    C-Myc Synthesis

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    C-myc is a transcription factor that is involved in the strict regulation of the cell cycle. It regulates genes that promote the induction of the cell cycle and it is also involved in apoptosis. The c-myc ¬gene is one of the most commonly activated oncogenes and has been found to be overexpressed in many cancers. Activation of this oncogene may contribute to as many as 100,000 cancer deaths per year in the United States alone (Dang et al., 2006). The discovery that this gene is involved in so…

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    A. Eukaryotic cells store their genetic information in chromosomes made of DNA. This DNA is copied during interphase of the cell cycle. Replication is semiconservative, meaning one strand of the replicated DNA would be from the original molecule and one would be new. The parental strands serve as templates for the new strands. Replication can begin when helicase breaks the hydrogen bonds responsible for holding the two complementary strands together, ultimately causing the molecule to unwind…

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    Nucleus Organelles

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    The nucleus, controlling all of the cell's activities and containing its genetic information, remains the most important organelle of the cell today. Although the first observations of the nucleus can be dated back to the 1700s, Robert Brown is often the man given credit for its discovery. In 1831, he noticed an opaque mark in a plant cell. Brown was not aware at the time, but he had sparked thought for many scientists. Soon it was discovered that the nucleus could be found in more than just…

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    Organelle Failure Nucleus: The nucleus of a cell is, without doubt, one of the most important parts of the cell. The nucleus instructs every single part of the cell what to do, and what the different organelles need to do. The nucleus includes chromatin (protein and DNA). It also contains Nucleolus (nucleoli is plural). These nucleoli are responsible for ribosome production. If the nucleus were to suddenly malfunction, this would mean that the cell would have no directions, and nothing to…

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    Cloning Technology

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    Technology today now allows us to address the idea of cloning. Cloning is creating an identical genetic copy of an organism or a cell. The process of this is there will be three subjects A, B, and C a body cell will be taken from A, the DNA will be extracted then an egg cell will be taken from B the nucleus removed. The DNA from A is fuse with the egg cell from B the fused cell develops into an embryo when it is placed in C the surrogate and then the clone is of subject A. To get to cloning…

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