During meiosis, homologous chromosomes synapse in the zygotene stage of prophase-I of meiosis-I. During pachytene of prophase-I, these paired homologous chromosomes exchange some genetic segment between their non-sister chromatids. This process of genetic recombination between the homologous chromosomes is called crossing over.Genetic recombination gives rise to recombinant chromatids. These recombinant chromatids carry some new allelic combinations which were otherwise not present in the parental chromatids.
Genetic recombination is a genetic process by which alleles from different parent organisms are combined and reshuffles in the offsprings produced by the parent organisms and the alleles are entirely different from the parents. Genetic recombination occur when two DNA molecules exchange genetic materials with each other and this normally occur during meiosis.
a gene is a unit of DNA that is usually located on a chromosome, they carry information that determine the traits, traits are characteristics inherited from your parents.
A and T pair together, and G and C are pairs. Whenever you see one of them in the original sequence, you'd just write the other one for the complementary sequence.
