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Humans have between 20,000 and 25,000 functional genes. Alleles are different versions of the same gene. How do you think these different versions of the genes occurred?

User Ali Abdelrahman
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1 Answer

24 votes
24 votes

Answer:

the many reproduction events

Step-by-step explanation:

because when there has been many different generations they get more and more genes

User Symi
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