Which of the following is a chromosome variation important for
the evolution of new genes?
                      Â
allopolyploidy
                      Â
chromosome inversion
                      Â
Robertsonian...
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Biology
Which of the following is a chromosome variation important forthe evolution of new genes?
                       allopolyploidy
                       chromosome inversion
                       Robertsonian translocations
                       aneuploidy
                       chromosome duplications
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Gene duplication or chromosomalduplication or gene amplification is amajor mechanism through which new genetic material is generatedduring molecular evolution It can be defined as any duplication ofa region of DNA that contains a gene Gene duplications can ariseas products of several types of errors in DNA replication andrepair machinery as well as through fortuitous capture by selfishgenetic elements Common sources of gene duplications includeectopic recombination retrotransposition event aneuploidypolyploidy and replication slippageEvolutionary fate of duplicategenesAllopolyploidyNormally different species cannot interbreed because they havedifferent chromosome numbers and cannot form diploid pairsOffsprings produced by such unions are typically sterile due tothis uneven chromosome pairingIf cytokinesis fails to occur in one of the gametes the hybridoffspring will have paired chromosomes from
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