Identity by type

Alleles have identity by type (i.b.t.) if they have the same phenotypic effect. Such alleles may be identical by descent (i.b.d.) if arose from the same allele in an earlier generation, but not identical by descent if they arose from separate mutations.

External links

• http://darwin.eeb.uconn.edu/eeb348/lecture-notes/identity.pdf
• http://zwets.com/pedkin/thompson.pdf