micro chapter 9

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Author:
lcunrod7
ID:
264870
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micro chapter 9
Updated:
2014-03-03 14:39:24
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genetics
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  1. what is the study of heredity
    genetics
  2. what is the sum total of genetic material of a cell (chromosomes + mitochondria/chloroplasts and plasmids)
    genome
  3. what is the genome of cells
    DNA
  4. what is the genome of viruses
    DNA and RNA
  5. what are DNA complexed with protein constitutes the genetic material
    chromosomes
  6. what chromosomes are a single circular loop
    bacterial genome
  7. what chromosomes are multiple and linear
    eukaryotic genome
  8. what are chromosomes subdivided into that are the fundanmetal unit of heredity responsible for a given trait
    genes
  9. what is the site on the chromosome that provides information for a certain cell function
    gene
  10. what is the segment of DNA that contains the necessary code to make a protein or RNA molecule
    gene
  11. what are the three basic categories of genes
    • 1. genes that code for proteins 
    • 2. genes that code for RNA
    • 3. genes that control gene expression
  12. what are the genes that code for proteins
    structural genes
  13. what are the genes that control gene expression
    regulatory genes
  14. what are all types of genes constitute the genetic makeup
    genotype
  15. what are the expression of the genotype creates observable traits
    phenotype
  16. what are two strands twisted into a double helix
    DNA
  17. what is the basic unit of DNA structure
    nucleotide
  18. what are the three parts the each nucleotide contains
    • 1. 5 cardon sugar - deoxyribose 
    • 2. a phosphate group
    • 3. a nitrogen base - adenine, guanine, thymine, cytosine
  19. what covalently bond to form a sugar-phosphate backbone
    nucleodtides
  20. what covalently bond to the 1` carbon of each sugar and span the center of the molecule to pair with an appropriate complementary base on the other strand
    nitrogenous bases
  21. _____ binds to ____ with 2 hydrogen bonds
    adenine and thymine
  22. ___ binds to ____ with 3 hydrogen bonds
    guanine and cytosine
  23. each strand provides a template for the exact copying of a new strand. order of bases constitutes the DNA code
    information in DNA
  24. what significance of DNA structure is constancy of base pairing guarantees that the code will be retained
    maintenance of code during reproduction
  25. what significance of DNA structure order of bases responsible for unique qualities of each organism
    providing variety

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