Scholarship..............
Answer:
A nucleus is the membrane-bound organelle, and it has the chromosomes, and genes are made up from DNA.
Explanation:
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A. The different length and different sequence are a good indication they are front different genes and probably have different functions.
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.