Although there are about 3,000 promoters in the bacterial genome, approximately 9,635 proteins can be synthesized in the cell. This is caused by __________.
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Step 1: Understand that a promoter is a DNA sequence where RNA polymerase binds to initiate transcription of a gene. Show more…
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Although there are about 30,000 genes in the human body, approximately 120,000 proteins can be created in the body. This is caused by: - The degeneracy of the genetic code - The presence of operons found in humans - The addition of a poly A tail to the primary transcript - The variable splicing of exons from pre-mRNA
Adi S.
The number of proteins humans can produce vastly exceeds the number of genes in the human genome. This is best explained by __.
Anand J.
54) In bacteria: a) each structural gene has it's own promoter b) protein coding regions are densely packed (one gene/1000bp) c) introns are common d) all of the above 55. In the human genome, at least ____% is repetitive DNA. a) 0.1 b) 0.5 c) 5 d) 50 56. Which of the following is true? a) Certain transgenic animals can produce human protein in their milk. b) A complete bacterial genome has been chemically synthesized, assembled, and introduced into a new bacterial cell. c) Next generation sequencing is fast. d) All the above are true. 57. 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: a) was within the deletion b) outside the deleted region 58. Certain RNA molecules have catalytic activity. a] true b] false 59. Scientists have found: a) only one mutation that causes cystic fibrosis b) over 1000 different mutations in the same gene that all cause cystic fibrosis 60. In E.coli, high glucose levels reduce cyclic AMP (cAMP) levels which then ______ transcription of the lactose operon. a] decrease b] increase 61. The start of a wild type mRNA was AUGCCCAAGACC.... A mutation resulted in the sequence AUGCCAAGACC... This type of change is called a ______ mutation. a) missense b) frameshift
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