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5 Written questions

5 Matching questions

  1. DNA
  2. 4 nitrogenous bases
  3. translation
  4. biotechnology
  5. gene expression
  1. a is an organic molecule made of many small subunits called nucleotides (monomers)
    -double helix molecule
  2. b applying technology to biology, has been around for thousands of years
  3. c going from mRNA to protein
  4. d A,T,G and C (Adrenine, Thymine, Guanine and Cytostine)
    A and T, G and C
    -sequence of bases in a DNA molecule forms a coded message
  5. e -every body cell contains a complete set of identical genetic instructions
    -cells have selective activation of only the genes necessary for that cell
    - the environment can also affect the expression of genes

5 Multiple choice questions

  1. the cell divides to form two offspring cells, or daughter cells, each containing identical copies of DNA (mitosis)
  2. -the traits inherited by an individual can be determined from one pare of genes or by several pairs of genes
    -some gene pairs can influence more than just one trait
    -some traits are observable, while others are not (examples: hair or eye color, ability to produce insulin, or types of receptors on cell membranes)
  3. contain half their genetic code from one parent and half from the other, making them similar but NOT identical
  4. an alteration in a sequence of DNA
    -change the normal message carried by the gene, causing a defect
    - they are random
    -affect the synthesis of proteins, which causes malfunctions in the cell. EX.) sickle cell anemia is caused by a substitution in the cell
    -can cause cell death
  5. amino acids -> shape -> function

5 True/False questions

  1. DNA moleculesmove specific amino acids to the ribosome, which are strung together to make a protein (transfer RNA)

          

  2. transfer moleculesmove specific amino acids to the ribosome, which are strung together to make a protein (transfer RNA)

          

  3. transcriptiongoing from DNA to mRNA

          

  4. how does gene manipulation happen?organisms have been genetically engineered to possess certain traits
    Examples:
    -flowers resistant to bugs
    -bacteria that feed on chemicals in oil spills
    -bacteria that produce HGH and insulin
    -plants resistant to herbicides

          

  5. genesare sequences of DNA that contain a code of instructions for a specific trait
    -a human cell contains many thousands of different genes, located on chromosomes, in its nucleus