THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gene expression
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Gene mutation
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Chromosome mutation
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Replication
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Detailed explanation-1: -So, the correct option is ‘Aneuploidy’.
Detailed explanation-2: -A gain or loss in the number of chromosomes from the normal 46 is called aneuploidy. A common form of aneuploidy is trisomy, or the presence of an extra chromosome in cells.
Detailed explanation-3: -A chromosomal mutation is a mutation involving a long segment of DNA. These mutations can involve deletions, insertions, inversions, or translocations of sections or segments of DNA. In some cases, deleted portions may attach to other chromosomes, disrupting both the chromosomes losing the DNA and the one gaining it.
Detailed explanation-4: -A mutation is a change in a genetic sequence. Mutations include changes as small as the substitution of a single DNA building block, or nucleotide base, with another nucleotide base. Meanwhile, larger mutations can affect many genes on a chromosome.
Detailed explanation-5: -Definition. 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.