Answer:TRUE
Explanation: Increased muscular Strength develops from increased Physical and aerobic exercise and activities,it has been established that physical activities like running, swimming,jogging, skating etc all have impact in Building one musculoskeletal Strength and it also helps to improve aerobic respiration which in turn will help to burn all excess FATS and CHOLESTEROL levels which has been attributed to major chronic health conditions,CANCER,HIGH BLOOD PRESSURE, HYPERTENSION etc.
Over time, as oxygen levels decrease, CO2 levels increase. Respiration is correct as it uses oxygen as a reactant and releases CO2 as a byproduct.
If the inducer [allolactose] is present in the negative control then it will bind to the repressor decreasing its ability to bind to the operator due to which the transcription begins again and the operon is turned on.
Lac Operon is a set of three genes z, y & a which are regulated under the same promoter which regulates the amount of lactose production in the cell.
An inducer is a molecule that has the ability to induce or activate the operon. ex- in the case of the lac operon, allolactose acts as an inducer.
A repressor is a molecule that will repress or restricts the transcription of the genes of the operon, as a result, the operon will be switched off.
When the lac operon is under negative control, with no CAP [catabolite repressor protein] binding activity, the repressor remains active and thus binds to the operator region of the operon, as a result, no transcription takes place and the operon will be switched off.
But if the inducer will be present even in the negative control then the transcription takes place and the operon will be on.
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