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Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

Dna replication occurs in preparation for

Are humans interfering with or a part of evolution happening today? find examples of evolution seen in recent history that could be caused by human activity.