The right answer is a person has more than two alleles for a certain trait.
Duplication is a genetic mutation characterized by the doubling of genetic material on a chromosome. There are several mechanisms that result in the duplication of either a large chromosomal portion, a gene, or a nucleotide sequence.
The answer is true letter a
Answer:
False
Explanation:
The cells of collenchyma have evenly thickened cell wall
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Its the letter B because its the circulatory system