Answer:
Turn a right on Mccallin Drive! Thank me later. ;)
Explanation:
42 is the meaning of life
In the absence of tryptophan, the genes trpA-E will not be transcribed.
If there were a mutation in the operator region of the trp operon, there would be a nucleotide change in the sequence of the operator. Mutations in the repressor that prevent its binding to the operator will lead to constitutive expression Mutations that prevent binding of the inducer without affecting the ability to bind to the operator lead to a non‑inducible phenotype.
The tryptophan binds to the trp repressor and causes it to change shape, converting into its active form. The trp repressor with the bound tryptophan attaches to the operator, blocking RNA polymerase from binding to the promoter and preventing transcription of the operon.
To learn more about tryptophan, here
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The question has not provided any necessary options but the best thing that the nurse should do in verifying the alarm setting on the infusion pump is at the following times;
<span>- </span>As soon as the infusion started
<span>- </span>When the child returns from the X-Ray examination
<span>- </span>It should be started at each shift
The correct answer is: Disruptive selection
Disruptive selection is a type of natural selection that favors both extreme traits in a population (it is bimodal) over intermediate traits. In the example above, it favors dark and light-snails (both are extreme traits). As a consequence, the population of snails is divided into two distinct groups. This happens because snails with intermediate brightness wouldn’t have suitable environment for them, wouldn’t be adopted to either shady forest or brushy edge areas.