CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A change in the cell’s structure
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Anything that changes in an embryo
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Any change in the physical features of a human
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A change in the DNA sequence
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Detailed explanation-1: -(myoo-TAY-shun) Any change in the DNA sequence of a cell. Mutations may be caused by mistakes during cell division, or they may be caused by exposure to DNA-damaging agents in the environment. Mutations can be harmful, beneficial, or have no effect.
Detailed explanation-2: -A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
Detailed explanation-3: -(myoo-TAY-shun) A change in the usual DNA sequence at a particular gene locus. Although the term often has a negative connotation, mutations (including polymorphisms) can be harmful, beneficial, or neutral in their effect on cell function.
Detailed explanation-4: -Hello students, our next topic for the MCQ is ‘Mutations’. The mutation is the abrupt changes to the genetic material of organism. The mutational changes affect DNA or sometimes whole chromosome. The types of mutation are genetic mutation and chromosomal mutation. The result of mutation produces altered protein.
Detailed explanation-5: -Mutations are changes that occur in DNA or RNA. Mutations can be silent, meaning they have no effect on the protein made, due to redundancy in the genetic code.