(Solved) : Gene Duplication Events Common Eukaryotes Depending Molecular Basis Duplication Mutations Q33248529 . . .
Gene duplication events are very common in eukaryotes. Dependingon the molecular basis of the duplication and the mutations thataccumulate, the genes may experience a number of fates. Apseudogene results when a duplicated gene accumulates mutationssuch that it becomes nonfunctional. Subfunctionalization occurswhen both copies of the duplicated gene accumulate mutations suchthat both copies are now required for normal function.Neofunctionalization occurs when a mutation in one copy of theduplicated gene creates a new function that wasn’t present in theoriginal gene. Below are several examples of gene duplicationevents. Choose the term that best describes each example.
pseudogene 1. The beta-globin gene has sequence similarity to the other genes in the beta globin family,but i lacks neofunctionalization a start codon. subfunctionalization 2. Hemoglobin consists of an alpha chain and a beta chain, each produced by a different but similar gene. Neither gene alone can make a functional hemoglobin molecule. 3. A duplicated gene in mosquitos accumulated mutations that allow it to break down a chemical found in a common pesticide 4. In most vertebrates, the pax transcription factor acts during development in the eye and brain. In zebra fish, each tissue has a different but similar transcription factor (paxA and paxB) and both transcription factors are necessary for normal development 5. The olfactory receptor gene family in humans contains 16 genes. Six of these genes contain mutations such that the genes do not encode functioning proteins Show transcribed image text
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