Genes and Isoforms

Isoforms

Definition(s)

Different forms of a protein that may be produced from different genes, or from the same gene by alternative splicing.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
The protein products of different versions of messenger RNA created from the
same gene by employing different promoters, which causes transcription to
skip certain exons. Since the promoters are tissue-specific, different tissues
express different protein products of the same gene.
Definition from: GeneReviewsfrom the University of Washington and the National Center for Biotechnology Information

  • Are fingerprints determined by genetics?
  • Gene

    Definition(s)

    The functional and physical unit of heredity passed from parent to offspring. Genes are pieces of DNA, and most genes contain the information for making a specific protein.
    Definition from: Physician Data Query via Unified Medical Language System at the National Library of Medicine
    The basic unit of heredity, consisting of a segment of DNA arranged in a linear
    manner along a chromosome, which codes for a specific protein or segment
    of protein leading to a particular characteristic or function.
    Definition from: GeneReviewsfrom the University of Washington and the National Center for Biotechnology.
    The gene is the basic physical unit of inheritance. Genes are passed from parents to offspring and contain the information needed to specify traits. Genes are arranged, one after another, on structures called chromosomes. A chromosome contains a single, long DNA molecule, only a portion of which corresponds to a single gene. Humans have approximately 23,000 genes arranged on their chromosomes.
    Definition from: Talking Glossary of Genetic Terms from the National Human Genome Research Institute
    The fundamental physical and functional unit of heredity. A gene is an ordered sequence of nucleotides located in a particular position on a particular chromosome that encodes a specific functional product (i.e., a protein or RNA molecule).
    Definition from: Human Genome Project Informationat the U.S. Department of Energy

  • What is a gene?
  • How do geneticists indicate the location of a gene?
  • Gene Therapy
  • What are gene families?
  • See also Understanding Medical Terminology.

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