Answer:
The gene for beta-galactosidase turns off.
Explanation:
The gene that codifies the beta-galactosidase enzyme is part of the <em>lac</em> operon, which also contains two other genes that produce enzymes involved in the metabolization of lactose.
Between glucose and lactose, the bacteria will preferentially use glucose as an energy source. On the other hand, lactose is a dimer, and thus a series of enzymes are needed to process lactose before its use as an energy source.
If there is no lactose present, the genes contained inside this operon are turned off (the operon is repressed).
<span>The virus uses the cell to replicate itself and then moves on. The cell, after replication dies as the new virus spreads.
</span>
<span>transcription/RNA processing-
pre-mRNA, mRNA, snRNA
translation- rRNA, tRNA</span>
A positive choice to make to impact one's health is to simply wake up in the morning and get ready, and take time on yourself. That will ensure that you appreciate yourself and will give you a positive mentality throughout the day.
A negative choice to make to impact one's health is to constantly over-think situations, causing stress and an unhealthy state of mind.
Answer:
Options 2, 3 and 4
Explanation:
Options 2, 3 & 4 are also mentioned at tge end of the cycle; hence it means that a star can become a supernova, black hole or a neutron star at the end of its evolution.
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