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Lunna [17]
3 years ago
11

"The energy necessary to perform this function comes directly from the

Biology
1 answer:
nataly862011 [7]3 years ago
3 0

it has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedv

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3 years ago
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The trp and lac operons are regulated in various ways. how do bacteria regulate transcription of these operons?
Vlada [557]

Operon is not transcribed:

-lac operon: lactose absent

-trp operon: tryptophan present

Positive control transcription of Operon does not speed it up:

Lactose and glucose are present, -lac operon

Tryptophan is lacking in the -trp operon.

Operon is transcribed quickly through positive control:

-lac operon: lactose present, glucose not

Only negative control is used to regulate the trp operon. The operon genes are not transcribed when tryptophan is present.

Both positive control and negative control are used to control the lac operon.

Negative control: —Transcription is inhibited when lactose is missing due to the activity of the repressor protein.

—The repressor protein is deactivated and transcription is triggered when lactose is present.

Positive control: —In the absence of glucose, another regulatory protein (CAP) attaches to the lac operon's promoter, speeding up transcription in the presence of lactose.

Learn more about lac operons here:

brainly.com/question/1695549

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7 0
1 year ago
A condition of the unconsciousness is an effect of the shutdown of what?
Annette [7]
Unconsciousness occurs when the brain shuts down in order to prevent any further damage to it.
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3 years ago
During cellular movement which filaments will be the ones that are responsible for attaching and pulling the other filaments alo
Makovka662 [10]

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