1.

Which of the given statement is incorrect?(a) In a given organism or species, genes are found in a given order that is maintained on the chromosomes from one generation to the next(b) Genes with a related function are frequently found to be distorted on a chromosome(c) A possibility is that there is genetic variation (alleles) within each gene in a cluster of a given species and that only certain allelic combinations of different genes are compatible(d) Clustering of related genes presumably provides an evolutionary advantage to a speciesI have been asked this question in an international level competition.My enquiry is from Functional Classification of Genes topic in section Genome Analysis of Bioinformatics

Answer»

Right option is (B) Genes with a related FUNCTION are frequently found to be distorted on a chromosome

To elaborate: Genetic analysis has revealed that genes with a related function are frequently found to be clustered at one chromosomal location. As genome-by-genome comparisons of the chromosomes of related species are made and the rearrangements are discovered, a further challenge to COMPUTATIONAL and evolutionary BIOLOGISTS is to estimate the number and types of rearrangements that have occurred and also to DETERMINE when they occurred. For example, a comparison of the mouse and human chromosomes reveals many rearrangements.



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