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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Answer:
Each step is based on genetic traits
Explanation:
so I think u can choose which one it is based on wht i said
Answer:
Undercutting of the mountain slope by glacial erosion and the retreat of the glacier are the main contributing factors for the rock avalanches, along with thawing permafrost and weaknesses in the bedrock. Landslides falling into glacial lakes may cause tsunamis and river floods and thus pose hazard to people.
The answer is Olives.
One striking characteristic of the Mediterranean Diet is its heavy use of olive oil as the primary source of fat, and their minimal use of both Butter and Margarine. Another striking characteristic of the southern Italian Diet is its heavy reliance on whole grains.
