Generally, temperature increases. as altitude increases ! <span>However, the temperature increases with altitude in some layers. This is called an inversion. Inversions can appear at any altitude in the troposphere.
(NOTE: its Troposphere not Stratosphere)</span>
Repressible system - tryptophan (the effector molecule) interacts with the repressor protein such that it can bind to the operator.
<span>Answer = C,
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They are related because a modern bird has scales on its feet..
Yes, like on land humans are at the top of the food chain and the rest of the animals on land trickles down from there. Yet the only difference with a marine food chain is instead of land animals and humans the food chain consists of fish,sharks, and other water dwelling animals.
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It is likely that the light blue colonies have a mutation in GENE I (lacI gene). LacI (lactose inhibitor) is a DNA-binding factor that represses transcription of the lac operon.
The lacI gene (regulatory gene for lac operon) is a gene located upstream of the three genes of the lac operon (i.e., lacZ, lacY, and lacA), which are transcribed as a unit.
The inducer of the lac operon is allolactose. When lactose is present, a small amount of this molecule is converted to allolactose.
The lac repressor, which is encoded by the lacI gene, binds to the operator upstream of the lac operon, thereby preventing its transcription unless the inducer is present.
Finally, the lacZ gene produces an enzyme called β-galactosidase, while X-gal is a blue-colored product precipitated when a bacterial colony expresses a functional β-galactosidase.
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