Электрон бүрдэл хэсэг болдог электрон эсвэл тэдгээртэй холбоотой төхөөрөмж буюу биетийг хэлнэ.
In a database similarity search with a query sequence, the number of local alignment scores that are experted between the query sequence and random or unrelate sequences that are as good as the score found between the quary sequence and a matched database sequence.
