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1. Raul has scraped his knee and noticed that after a week it had almost completely healed. Raul wondered how the skin was able to repair itself while looking exactly the same as his non-injured skin. In 3-5 sentences explain how mitosis plays a role in healing skin after injury and is able to maintain the look of the existing, non-injured skin.

2. In three to five sentences, explain the advantage of keeping some DNA needed by mitochondria in the cell’s nucleus and some in the mitochondria itself.

3. In 3–5 sentences, construct a summary of the process of gene expression, starting with DNA and ending with proteins..

Sagot :

Answer: Injured skin produces C-rays that allow for skin to knit itself back together. These C-rays are always present in cells, but are only activated during mitosis by injured skin. This is why there is sometimes scarring left after injury, as the C-rays are not activated as much as healing occurs.

Explanation:

luisvaschetto

Gene expression is fundamental to produce proteins, mitosis is a cell division process and mitochondria are the energetic factories of the cell.

  • Mitosis is the cell division process by which a somatic cell divides to produce two genetically identical daughter cells.

  • Mitochondria are eukaryotic organelles that act to synthesize ATP (the energy coin of the cell) during cellular respiration.

  • During gene transcription, a fragment of DNA called gene is used as template to create an mRNA, which is subsequently used to create a protein by a process called translation.

In conclusion, gene expression is fundamental to produce proteins, mitosis is a cell division process and mitochondria are the energetic factories of the cell.

Learn more in:

https://brainly.com/question/15175461

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