The Major Difference Between Single Nucleotide Variants (SNVs)and Copy Number

question 2

Multiple Choice

The major difference between single nucleotide variants (SNVs) and copy number variants (CNVs) is that:

• A) SNVs are duplicated in tandem and involve complex gains or losses of homologous sequences,whereas CNVs involve simple sequence changes.
• B) CNVs occur in stretches of DNA ranging from 100 to millions of bases in size,whereas SNVs involve single base changes.
• C) SNVs are always associated with disease,whereas CNVs are not.
• D) SNVs are involved in gene amplification by producing more than two functional genes in a genome.

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