Answer:
Activated
Explanation:
In the presence of lactose, and in the absence of glucose, lactose will bind to a protein called a "repressor," deactivating it. Through this, RNA polymerase has a free way to synthesize the mRNA that will give enzymes for lactose degradation.
Cells<span> are the basic unit of structure and function in all living things. Hope this helps. :)</span>
Down syndrome causes a distinct facial appearance, intellectual disability, developmental delays, and may be associated with thyroid or heart disease.
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Three reasons for cell division are:
.Growth
. Cell Replacement
. Regeneration
. Asexual Reproduction
