Bio test 4

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Author:
westerngal95
ID:
272206
Filename:
Bio test 4
Updated:
2014-04-28 01:40:19
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bio test
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bio
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bio test 4
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  1. An organism's appearance or observable traits
    phenotype
  2. the genetic makeup of an individual
    geneotype
  3. alternative versions of a gene
    alleles
  4. a cross between individuals which are heterozygous for a single character
    monohybrid
  5. a cross between individuals which are heterozygous for two different characters
    dihybrid
  6. a cross between an unknown genotype and a homozygous recessive individual
    testcross
  7. Used model-building to determine the structure of DNA
    watson and crick
  8. used x-ray crystallography to study DNA structure
    Franklin and Wilkins
  9. Discovered the phenomenon of "transformation" in sterptococcus bacteria
    Griffith
  10. determined the "rules" for a cells DNA content (A,T,G,C)
    Chargaff
  11. identified DNA as the transforming factor (viruses)
    Hershey and Chase
  12. elaborated on Griffith's 
    worked with bacteria 
    (mice)
    Avery, MacCleod, and McCarthy
  13. structure of the ax helix
    Linus Pauling
  14. Individuals have XXY genotype, and are male
    Klinefelter syndrome
  15. have XO genotype and are female
    Turner Syndrome
  16. have 47 chromosomes, with an extra chromosome 21
    down syndrome
  17. have 45 chromosomes
    turner syndrome
  18. open section of DNA in which DNA can replicate is called
    replication fork
  19. enzyme that can replicate DNA
    DNA polymerase
  20. New DNA strand that grows continuously
    leading
  21. short sections of DNA that are synthesized on the lagging strand of the replicating DNA
    okazaki fragments
  22. relieving strain in DNA ahead of the replication fork
    topoisomerase
  23. A=
    T
  24. G=
    C
  25. DNA strand
    • Sugar phosphate make up backbone
    • Bases are held together by hydrogen bonds
    • bases make up rungs of ladder
  26. two dominate alleles affect the phenotype in separate, distinguishable ways
    co-dominance
  27. phenotype of F1 hybrid is somewhere between the phenotypes of the two parental varieties
    Incomplete dominance
  28. when phenotypes of the heterozygote and dominate homozygote are identical
    complete dominance
  29. Law of segregation
    alleles separate during gamete formation
  30. removes chromosome segment
    deletion
  31. a duplicated repeats a segment
    duplication
  32. reverses a segment within a chomosome
    inversion
  33. moves a segment from one chromosome to a nonhomologous chromosome
    translocation
  34. discovered DNA from pus
    Fredrick Miescher

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