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DNA spelling bee

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  1. recessive allele
    an allele that produces its characteristic phenotype only when its paired allele is identical
    On the other hand, a recessive allele will be expressed only if there are two identical copies of that allele, or for a male, if one copy is present on the X chromosome.
  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. phenotype
    observable characteristics produced by genes and environment
    When two individuals display different phenotypes of the same trait, they are said to have two different alleles for the same gene.
  5. ribosome
    a particle in a cell that helps synthesize proteins
    Because mitochondria have their own DNA, RNA, and ribosomes, this scenario is quite possible.
  6. phenotypic
    of or relating to or constituting a phenotype
    These expressed, or phenotypic, traits are attributable to genotypic variation in a person's DNA sequence.
Created on Tue Jul 16 13:47:00 EDT 2013 (updated Tue Jul 16 13:50:28 EDT 2013)

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