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eimsori [14]
2 years ago
10

Most new alleles probably arise from ____. a. Rearrangement of existing alleles into new combinations b. Independent assortment

of nonhomologous chromosomes c. Large-scale changes in chromosome structure d. Small-scale mutations in dna e. Crossing over between homologous chromosomes
Biology
1 answer:
Drupady [299]2 years ago
6 0

Answer;

- large-scale changes in chromosome structure

Explanation;

-Alterations to chromosome structure or changes in the number of copies of chromosomes in a cell.

-Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele.

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