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Introduction
Introduction

... single-celled organisms and a few multicellular organisms can produce genetically identical clones of themselves through mitotic cell division, many single-celled organisms and most multicellular organisms reproduce regularly using another method. Sexual reproduction is the production by parents of ...
Mitosis: Chromosome Replication & Division
Mitosis: Chromosome Replication & Division

... mitosis is divided into P (prophase), PM (prometaphase), M (metaphase), A (anaphase), and T (telophase). This is shown in Figure 3. Figure 3: Cell Cycle ...
Mitosis
Mitosis

... – At the beginning of cell division, the chromosomes condense into visible structures. – Before cell division occurs, each chromosome replicates. – Each chromosome consists of two identical “sister” chromatids separate from each other. – Each pair of chromatids is attached to an area called the cent ...
Chapter 7: Cell Structure and Function
Chapter 7: Cell Structure and Function

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... 6. Lipids consists of (name the elements: 7. Nucleic acids consist of (name the elements): ...
Cell Project in a File Folder
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Cells - WordPress.com
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... DNA is found in a nucleus, linear, there is more DNA than in a prokaryotic cell Has membrane covered organelles as well as ribosomes Everything that is not a bacteria has this type of cells Examples: plants, animals, fungi, protists ...
Cell Growth Power Point
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Mitosis and Cytokinesis
Mitosis and Cytokinesis

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... T-cells trigger the response of the adaptive immune system on pathogens entering the body. When recognizing foreign peptides on antigen presenting cells, their activation state can be read out with the help of dyes that change their spectral properties upon an increase in the cytosolic Ca++-concentr ...
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... Gene p53 is linked to many cancers –Normally will not let cell divide until all chromosomes have divided –Defective in cancer cells Stem cells Stem cells – ____________________________________________ that have the potential to ...
APMitosis2015 16
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...  Dividing cell’s DNA between 2 daughter nuclei  4 phases prophase  metaphase  anaphase  telophase ...
Biology 1Pre-AP/GT - 2011 Unit 3: Cells/ Cell Processes Chapters 7
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... We have established that not all cells are alike in structure and function and we have also noted that cells can group together to form tissues. Typically an organism begins as one cell and grows into a multicellular one. How is this possible? In other words, how does an organism grow? Part 1: You w ...
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... Viruses are not generally considered to be alive because they are not cells. We study them in Biology because they are found in living organisms. Viruses have DNA (or sometimes RNA), but do not have a cell membrane, or any organelles. They also do not have cytoplasm. They are very small (smaller tha ...
Cell Unit Test
Cell Unit Test

... 2. Which of the following statements is part of the cell theory? a. Larger cells work more efficiently. b. Smaller cells work more efficiently. c. All living things are made of cells. d. None of the above. 3. Complex cells that have a nucleus are called: a. eukaryotic cells. b. prokaryotic cells. c. ...
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Mitosis



Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.
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