Which of the following is true about gene duplications?
o if a gene is duplicated, another copy gets deleted.
o gene duplications create an identical or similar second copy of a gene.
o gene duplications can only happen in plants, not in animals.
o gene duplications always result in frameshift mutations.
o genes are never duplicated.

The correct answer is Gene duplication create an identical or similar second copy of a gene.

Explanation:

Gene duplication is also called chromosomal duplication is a process by which similar copy of a gene is generated with respect to its precursor gene.

    Any type type of error during DNA replication or repair leads to gene duplication.

   There are many types of gene duplication process among them the most important is retrotransposition, aneuploidy,polyploidy etc.

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