Question
____ System — The system is normally “off” but can be made to turn “on,” given a particular signal.
Answer
Inducible System — The system is normally “off” but can be made to turn “on,” given a particular signal.
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: ____.