1.What process can allow changes to an organism that creates resistance to antib
ID: 92414 • Letter: 1
Question
1.What process can allow changes to an organism that creates resistance to antibiotics? 2. Which of the following results in the production of thymine dimers and other DNA damage? 3.which of these processes is the most effective and efficient mode of eliminating bacteria ? 4.which term below describes a substance that inhibits the growth of bacteria cells? 5. Which term below describes the complete destruction or elimination of all viable cells?1.What process can allow changes to an organism that creates resistance to antibiotics? 2. Which of the following results in the production of thymine dimers and other DNA damage? 3.which of these processes is the most effective and efficient mode of eliminating bacteria ? 4.which term below describes a substance that inhibits the growth of bacteria cells? 5. Which term below describes the complete destruction or elimination of all viable cells?
2. Which of the following results in the production of thymine dimers and other DNA damage? 3.which of these processes is the most effective and efficient mode of eliminating bacteria ? 4.which term below describes a substance that inhibits the growth of bacteria cells? 5. Which term below describes the complete destruction or elimination of all viable cells?
Explanation / Answer
1. The process can allow changes to an organism that creates resistance to antibiotics are Horizontal gene transfer and Spontaneous mutations. Bacteria share DNA with each other during horizontal gene transfer .
2. Thymine dimers, formed by linking the adjacent thymine bases. They are molecular lesions. They are the result of the photochemical reactions formed from thymine or cytosine bases in DNA. It may lead to conformational changes in the DNA structure. Two consecutive bases on one strand bind together, by the exposure of photon and destroying the normal base-pairing double-strand structure in that area, which causes molecular lesions.
3. Sterilization is the most effective and efficient mode of eliminating bacteria and all other life forms by a chemical or physical means.
4.Antisepsis inhibits the growth of bacteria cells.
5. Sterilization describes the complete destruction or elimination of all viable cells by a chemical or physical means.
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