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- 24 Answer The Following About Genes And Salmon Species 1 (246.06 KiB) Viewed 85 times
24. Answer the following about genes and salmon species
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24. Answer the following about genes and salmon species
24. Answer the following about genes and salmon
species
A graduate student is hard at work on studying the genome assembly, and the included genes, from a newly discovered salmon species, the yellow-spotted sneaker salmon. When the investigator compares genes to one another they find that many of the genes appear to exist in multiple copies, each set on a different chromosome. When they look at the order of the genes along the chromosomes, they find that the duplicates tend to also be in the same order on different chromosomes. The most likely event that led to this genome architecture is a: OA proliferation of transposable elements Segmental duplication Owhole genome duplication OAn invasion of introns As the graduate student investigates further, they decide to do some lab work and test where and in what developmental stage the duplicate genes are expressed in, while comparing it to known gene expression in the zebrafish. For several genes, when the researcher compared expression to the ortholog in the zebrafish, they find that the two copies in the yellow-spotted sneaker salmon have specialized in their expression. So, in the zebrafish, the gene is expressed in two tissues simultaneously during development in the yellow-spotted sneaker salmon, each duplicate is expressed in only one tissue during one developmental stage. The fate of these genes is known as: O Tandem duplication O Subfunctionalization Methylated amplification ONeofunctionalization OPseudogenization/Nonfunctionalization For many duplicates, the researcher finds that only one of the copies is expressed at all. In the location where the second copy appears, the research finds remnants of the gene copy, but there are a number of mutations and most of them appear to have aberrant stop codons. These genes have undergone: Methylated amplification OPseudogenization/Nonfunctionalization Neofunctionalization O Tandem duplication Subfunctionalization
species
A graduate student is hard at work on studying the genome assembly, and the included genes, from a newly discovered salmon species, the yellow-spotted sneaker salmon. When the investigator compares genes to one another they find that many of the genes appear to exist in multiple copies, each set on a different chromosome. When they look at the order of the genes along the chromosomes, they find that the duplicates tend to also be in the same order on different chromosomes. The most likely event that led to this genome architecture is a: OA proliferation of transposable elements Segmental duplication Owhole genome duplication OAn invasion of introns As the graduate student investigates further, they decide to do some lab work and test where and in what developmental stage the duplicate genes are expressed in, while comparing it to known gene expression in the zebrafish. For several genes, when the researcher compared expression to the ortholog in the zebrafish, they find that the two copies in the yellow-spotted sneaker salmon have specialized in their expression. So, in the zebrafish, the gene is expressed in two tissues simultaneously during development in the yellow-spotted sneaker salmon, each duplicate is expressed in only one tissue during one developmental stage. The fate of these genes is known as: O Tandem duplication O Subfunctionalization Methylated amplification ONeofunctionalization OPseudogenization/Nonfunctionalization For many duplicates, the researcher finds that only one of the copies is expressed at all. In the location where the second copy appears, the research finds remnants of the gene copy, but there are a number of mutations and most of them appear to have aberrant stop codons. These genes have undergone: Methylated amplification OPseudogenization/Nonfunctionalization Neofunctionalization O Tandem duplication Subfunctionalization
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