Mr. Roethel's Tough Science Words For Me and I Mean Tough

Heidi J. (United States of America)
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Full list of words from this list:

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  1. dominant allele
    an allele that produces the same phenotype whether its paired allele is identical or different
    The Nature of Alleles

    A dominant allele is an allele that is almost always expressed, even if only one copy is present.
  2. organelle
    a specialized part of a cell; analogous to an organ
    Organelle DNA

    Not all genetic information is found in nuclear DNA.
  3. mitochondrion
    part of a cell involved in energy production
    Both plants and animals have an organelle-a "little organ" within the cell- called the mitochondrion.
  4. eukaryote
    an organism of one or more cells with membrane-bound nuclei
    The location and base sequence of each promoter site vary for prokaryotes (bacteria) and eukaryotes (higher organisms), but they are both recognized by RNA polymerase, which can then grab hold of the sequence and drive the production of an mRNA.
  5. allele
    any of the forms of a gene that can occupy the same locus
    Methylation also plays an important role in genomic imprinting, which occurs when both maternal and paternal alleles are present but only one allele is expressed while the other remains inactive.
Created on 六月 27, 2011

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