Answer:
<h2>Yes, the synthesis of threonine occurs because threonine will not be bound to the repressor, so in unbound state, the repressor will be inactive.
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Explanation:
1. If an E. coli bacterium is grown, in an environment where threonine is absent, transcription of threonine synthesis genes take place, because threonine will not be bound to the repressor, so the repressor will be inactive.
2. When the repressor is bound to the threonine, it becomes active, and in the absence of threonine , repressor become inactive because there is no threonine to bind with repressor.
3. So, in the absence of threonine , there is synthesis of threonine occurs.
Answer:
Arteries
Explanation:
the heart is like the main machine but arteries carry the blood throughout the body
My Answer: <span>demographic transition
Hope I helped! :D</span>
Answer:
I think that electricity doesn't harm environment.because the environment is getting polluted from polluted gases.
Explanation:
Better planning trees and avoiding things which harm environment.
Answer:
C
Explanation:
Single-celled organisms use cell division as their method of reproduction