A type of DNA sequence that is composed of sequences from two or more different sources or organisms, such as human and pig sources, or synthetic (lab-made) sequences and microorganisms.

Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids that results in recombinant ...

A) In a normal meiosis, chromosomes align precisely at the recombination site and crossovers do not change the number of genes in the recombinant chromosomes. B) The presence of duplicated ...