$24.$ A WT chromosome is represented by the genes, $1$ through $9,$ with a centromere represented by a dot $"",$ which looks like $123456789.$ The researcher finds the following mutant chromosome $12346789.$ What is wrong with this chromosome?A$.$ InversionB. TranslocationC. DeletionD. DuplicationE. None$25.$ The mutation in the above WT chromosome resulting in $(12346789)$ could have been caused by the following?A$.$ Two recombination events between repetitive DNA on homologous chromosomes.B$.$ Two identically positioned double stranded breaks in homologous chromosomes and reunion.C$.$ A single recombination event between repetitive DNA on homologous chromosomes.D$.$ Recombination between repetitive DNA on non$-$homologous chromosomes.E$.$ Recombinatin in meiotic inversion loops$\mathrm{.}26.$ Using the above WT chromosome, the researcher finds another mutant chromosome with the following gene order $12346578$ABC. What is wrong with this chromosome?A$.$ InversionB. TranslocationC. DeletionD. DuplicationE. None$27.$ Animals have a single photolyase gene while plants have two copies and one of the copies became a way to measure Ultraviolet radiation $.$ What is the most likely way that these two genes could have arisen?A$.$ An missense mutation in the single copy of the photolyase gene to make a protein that can measure ultraviolet light.B$.$ Duplication of the photolyase gene followed by neo$-$functionalization to a ultraviolet function.