Question
CAP is a ____ used by E. coli when glucose levels are low.
Answer
CAP is a transcriptional activator used by E. coli when glucose levels are low.
Note: Bacteria can digest lactose, but it is more energetically expensive than digesting glucose. Therefore, bacteria only want to use this option if lactose is high and glucose is low. The lac operon is induced by the presence of lactose; thus, these genes are only transcribed when it is useful to the cell.
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The central dogma states that ____.
The central dogma states that DNA is t____ to protein.
The ____ states that DNA is transcribed to RNA, which is translated to protein.
A ____ code allows multiple codons to encode for the same amino acid.
A degenerate code allows ____ codons to encode for the same amino acid.
Initiation codon: ____.