one base substitution
They don't, Homologous structures, such as the bones in your forearms and the bones in your cat's and dog's forelegs are that similar because you and your pets are mammals and closely related on the evolutionary tree. Before modern genetic showed this to be convincing the study of morphology was showing us pretty much the same thing; homologous structures support evolution.
Advantages: Outbreeding often produces offspring of superior quality because it increases homozygosity (the occurrence of two alleles for the same trait at corresponding positions on homologous chromosomes), thereby sharply reducing the risk of deleterious recessive genes being expressed. Crossbreeding is the most common form of outbreeding.
plants and animals living on a continent seemed more closely related to each other than to plants and animals living in similar regions on other continents
There are 50 states in the United States. There are also 6 non-state regions and territories:American SamoaDistrict of Columbia (US capital)GuamNorthern Marianas IslandsPuerto Rico (commonwealth)U.S. Virgin Islands(see the related question)
rehearsing
Related species have inherited homologous traits from a common ancestor.
they
Homologous structures.
Homologous structures.
alike, similar, corresponding, related
yes
'''Vegetation regions and climate regions are related in Europe by the FOREST!'''
True. The more distantly related two organisms are in evolutionary terms, the fewer homologous structures they are likely to share. Homologous structures are features that have a common evolutionary origin, so closely related organisms are expected to have more similarities in their structures compared to more distantly related organisms.
Homologous Agreeing Comparable Kindred Equivalent Related
Human Mutation was established in 1992 as a scientific journal focusing on research related to mutations in humans.
Homologous structures!
Homologous structures.