Explain why/how human cells are highly resistant to immortalization and transformation in comparison with mice cells.
One main feature of cancer cells is its ability to replicate at
a high speed without stop. This is called as
immortialization.
Humans are known to have have resistance to immortalization . It is
due to their genetic constitution .
Compared to mice,they have higher resistance to
immortalization.
This can be becuase of their low DNA repair, poor genetic stability
etc
Even though both humans and mice undergo
senescence of their primary cells,the humans have an enzyme called
as telomerase that helps maintain the length of the telomeres and
integrity of the cell membrane.
Its found out that in mice, this enzyme leaks out leading to neural
and disfunctioning of other tissues,
Therefore,it nullifies their resistance to immortalization.
Explain why/how human cells are highly resistant to immortalization and transformation in comparison with mice cells.
Can we use bacterial cells to produce human proteins? Why? Explain. Which type of cells would be better for protein expression of human proteins? Mammal or bacteria cells? Why?
There are more cells than organelles in the human body. Briefly explain why it is false or reword it to make it true.
Why are Gram positive cells more resistant to complement? Does complement work on Gram positive cells in any way? Describe.
23. How does natural selection cause evolution? 24. How do bacteria become antibiotic resistant? 25. Human birth weight is a classic example of: 26. Imagine that those who had children at a younger than average age tended to leave more descendants than others. This continued to be true over hundreds of generations across the planet. What else would evolve as a consequence? 27. Which is definitely an INCORRECT explanation for why we grow old? 28. Why is adaptation imperfect? 29....
the statement is true or false and then explain why. Many human genes so closely resemble their homologs in yeast that the protein-coding portion of the human gene will substitute for the function of the yeast gene in yeast cells.
Explain the transformation of human societies from hunting and gathering to sedentary agriculture. Is the idea of progress needed to understand this transformation, or is this just our Western notion to reinforce misunderstandings of Darwinian evolution, as change equals a better life?
in a DC motor why and how the gain K is affected by the amaurtue resistant and induance ? whats the actual units for K. For tau is affect just by taking induance over resistant? thanks
Explain how a superantigen toxin non-specifically stimulates T cells. Why does non-specific stimulation of T cells make a person sick? Explain the molecular mechanisms by which quorum sensing regulates TSST-1 expression. How do superantigens promote immune evasion? Describe impacts on B cells and T cells Why is toxic shock syndrome associated with high absorbency tampons and menstruation?
Why are some bacteria resistant to the effects of penicillin? How would you genetically engineer a strain of anthrax to be resistant to penicillin?
Explain why these are true or false. A single skin cell in a human female has: (select all) a) DNA from her mother and father (true) b) different DNA content than her liver cells (false) c) different protein content than her liver cells (true) d) different DNA content than her egg cells (true)