Do you expect the similarity found between orthologs and par

Do you expect the similarity found between orthologs and paralogs of your sequence to have happened by chance? Justify.

Solution

Two genes are said to be homologues if they have common ancestral gene, the homologues are considered are to be orthologs if they have similar functions. if their functions are different they were considered paralogs.

Orthologd are r homologous proteins that are found among different species showing similar function .orthologs occur due to speciation. paralogs are also homologous proteins found within the same species that have similar structure but have different functions .paralogs occur due to gene duplication within the species.

Evolution of orthologoud genes is almost followed by gene duplication andloss of genes. Those that arise from duplications cause Paralog genes within the respective lineages while remaining form orthologs.

Recent studies show that orthologs share a greater structural similarity than paralogs at the same level of sequence divergence and more similar tissue expression profiles.