jacob7542
08.11.2019 •
Mathematics
Allele frequencies can change across the geographic range of a species according to climate, geological features, or direction in the range. for instance, a certain allele frequency might go up along with the elevation or down as you go south in the species' range. this systematic change in frequency is referred to as
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Ответ:
Microevolution
Step-by-step explanation:
It is a systematic change in allele(gene) frequency in a population of living organisms over a certain period of time.This change maybe caused by :
1.Mutation-A change in genetic composition of an organism due to environmental factors such as the excessive exposure of an organism to radiation.
2.Natural selection-Which occurs when some organisms have to survive a changing environment as a result of the possesion of some beneficial traits.
3.Gene flow-which involves the transfer of genes from one population to another.
4.Genetic drift-which is a difference or variation in the genetic make-up among organisms of the same species.
Ответ:
x = 15