Question

In a duplication, a person has more than two alleles for a certain trait. crossing-over between sister chromatids has occurred twice a particular segment is missing on one chromosome. a chromosomal segment is turned 180 degrees. chromosomal segments are exchanged between two nonhomologous chromosomes. 4 points save answer

Answer 1

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.