Cell division and protein synthesis
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Gene | a sequence of nucleotides in DNA that is a chemical set of instructions for making a specific protein
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| Translation | MRNA changing one thing to another because of a signal
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| Messenger RNA | Travels from the nucleus to the ribosomes in the cytoplasm where the information in the copy is used to construct a protein by means of translation
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| Transfer RNA | RNA that attaches to individual amino acids and transports them to the ribosomes where they are connected to form a protein polypeptide chain
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| Transcription | Copies the proteins
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| Ribosomal RNA | RNA that is associated with certain proteins to form ribosomes
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| Condons | sequence of 3 nucleotides in mRNA that codes for a specific amino acid in a protein
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| Cell division | process in making new cells for the body mitosis and meiosis formation of 2 daughter cells from a single parent cell
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| Diploid number | the 46 chromosomes in the human body
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| Autosomes | the remaining 22 chromosomes
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| Mitosis | all cells of the body except those that give rise to sex cells, 2 step process, replicated and divided
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| Replication | the duplication of cells in mitosis
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| Interphase | the period between active cell divisions during which DNA is replicated
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| Chromatin | thin strands of DNA throughout the nucleus
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| What are the stages in mitosis | prophase metaphase, anaphase telophase
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| prophase | first stage in mitosis spindle fibers extend from the centrioles to the centromeres
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| Metaphase | second stage in mitosis the chromosomes align near the center of the cell
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| Anaphase | the 3rd step of mitosis, centromeres separate, sets of chromosomes moved to the centriole at the poles of the cell
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| Telophase | the last stage in mitosis, the chromosomes in the daughter cells organize to form 2 seperate nuclei.
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| Meiosis | sex cells are formed. cells go through 2 divisions resulting in 4 nuclei
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| What are the stages in Meiosis | early prophase 1 middle prophase 1 metaphase 1 anaphase 1 telephase 1
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| Haploid | half the number of chromosomes found in other body cells
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Created by:
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