In bacteria: In the human genome, at least % is repetitive DNA. Which of the fol

ID: 74800 • Letter: I

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In bacteria: In the human genome, at least % is repetitive DNA. Which of the following la true? A bacteriophage strain carrying a point mutation is crossed with a bacteriophage strain carrying a deletion mutation. If no wild type phage are produced, the point mutation: Certain RNA molecules have catalytic activity, Scientists have found: In E.coli, high glucose levels reduce cyclic AMP (cAMP) levels which then transcription of the lactose operon. The start of a wild type mRNA was AUGCCCAAGACC... . A mutation resulted in the sequence AUGCCAAGACC... This type of change is called a mutation.

Explanation / Answer

54) d) All of the above

55) d)50% repetitive DNA present in humans

56) b) A complete bacterial genome has been chemically synthesized , assembled , and introduced in to a new bacterial cell.

57.a) within the deletion

58) a) true Ribozyme

59. a) cystic fibrosis (The most common mutation, F508, is a deletion ( signifying deletion) of three nucleotides

b) However, there are over 1500 other mutations that can produce CF.

60. High glucose levels decrease transcription of the lactose operon

61. b) frameshift mutation (A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read)

Missense mutation (a type of nonsynonymous substitution) is a point mutation

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In bacteria: In the human genome, at least % is repetitive DNA. Which of the fol

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