Answer:intinko su los tios
Explanation:yepaks
Explanation:
Differentiation in cells occurs due to the silencing of some genes in the DNA of the cell while leaving others open to RNA polymerase enzymes.
Silencing occurs through the mediation of histones that tightly coil up DNA into heterochromatin in some regions. This way the genes in these regions are inaccessible to transcription enzymes and proteins and cannot be expressed. This means that proteins associated with these genes are not produced.
The open genes, on the other hand, in the euchromatin region, produce the necessary proteins that are associated with the determined function of the cell.
An example is that while the hepatocytes cells and brain cells of the same person have the same DNA, the genes for producing bile are silenced in the brain cells (and are open in hepatocytes) while genes responsible for producing neurotransmitters are silenced in hepatocytes but open in brain cells.
Learn More:
For more on gene silencing check out;
brainly.com/question/12777212
brainly.com/question/4768354
brainly.com/question/10225586
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The infant should be given a trial of bronchodilators.
Explanation:
Bronchodilators are compounds that dilates the bronchioles and smoothens the flow of air through them.
The infant has gonorrhea and cough. This shows that he has excessive mucus secretion in his respiratory tract.
Wheezing and prolonged expiration shows that the infant is having breathing difficulty.
Wheezing usually occurs when there is a blockage in the bronchial passage.
Since immunizations are up to date, chances of probable infections are less.
In this case the physician should use a bronchodilator trial to check if the blockage in the bronchus is due to mucus.
Then any further examination should be followed.
