Which of the following pairs are orthologs? Which are paralogs? Which are neither? Human Trypsin and...

Which of the following pairs are orthologs? Which are paralogs? Which are neither?

Human Trypsin and horse Trypsin

Human Trypsin and horse chymotrypsin

Human Trypsin and human elastase

Bacillus subtilis subtilisin and horse chymotrypsin

Solutions

Expert Solution

Orthologs: Orthologs are basically genes present in different species that are known to be evolved from a common ancester. Normally, such genes show same function, and too an extent genetic sequence as well. Examples of orthologs are:

Human trypsin and horse trypsin
Human trypsin and horse chymotypsin

Paralogs: These are basically genes related through duplication within a genome. unlike orthologs, which retain the same function iduring evolution, paralogs show new functions, even if they are related to the original one. examples of paralogs is:

Human trypsin and human elastase .

Neither: As they are not at all related in terms of common ancestory and aslo subtilisina and chymotrypsin are unrelated structurally.
Subtilisin and chymotrypsin

gladiator answered 1 year ago

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