Genetics

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Author:
NurseNatalie
ID:
76018
Filename:
Genetics
Updated:
2011-03-29 17:30:14
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drexel
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Description:
intro lecture
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  1. What is genomics?
    is the study of genes and methods that determine complete DNA sequences and gene function
  2. What is genetics?
    The study of individual genes, including the impact of individual genes on relatively rare disorders.
  3. What is genetic evaluation?
    Broader than genetic counseling; includes information gathering, information sharing and value-neutral counseling.
  4. mitochondrial chromosomes are known as
    tRNA
  5. What are the Ribonucleotide components?
    • Phosphate
    • Ribose (sugar)
    • Base (Guanine, Adenine, Cytosine, Uracill)
  6. In RNA, thymine is replace with
    Uracil
  7. Differences that occur more frequently in the human genome are known as
    polymorphisms
  8. What are the 3 characteristics of a gene?
    • 1.exons-coding portions
    • 2.Introns- transcribed into mRNA but not translated into a protein
    • 3.Regulatory regions
  9. Homologous copies of a gene are known as
    alleles
  10. On the chromosome the arm above the centromere is called_____ and the arm below the centromere is called ______.
    • P arm
    • Q arm
  11. What is Mitosis?
    the process of nuclear division in which the chromosomes are duplicated and distributed equally to the daughter cells. Same chromosomal content as the original cell ( diploid number)
  12. What is Meiosis?
    cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)

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