A Which protein do you think is the more likely homologous A

Query 1 MQ1FVKTLTGKTITLEVEPSDTIENVKAKIQDK EGIPPDQQRLIFAGKLG 50 SbjctAl MNDSYAGLSGVTIAKDKIPMLTAEGSTAGILDRETDSPIQQ GLEESAVLG 0 Iden t i t i es : 1 9/5 Positives: 25/50 Query 1 MQIFVKTLTGKTITLEVE PSDTIENVKAKTQDKEGIPPDQQRL IFAGKLG 50 SbjctB1 MQLFVKSLADY IKWKGSPTVAGT FAYGRASQDREGIPPEQQ RLIFVLADE 50 Identities: 19/50 Positives: 25/50 5

Solution

A. Protein B is more homologous to the query because it has three particular strech of the aminoacid sequence which is matching with the query and these regions are conserved regions in both the proteins (protein B and query)

B.What parameter that was not provided here but is included in a typical database search might help you make the decision in D? Question is not clear to me because what is D is not given.

But I can say that if you want to see the homoly of two proteins it means it is from different origins for instance human vs yeast protein.