With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ajay Devgan appears in Bollywood films.
text_B: Polysomy is a condition found in many species , including fungi , plants , insects , and mammals , in which an organism has at least one more chromosome than normal , i.e. , there may be three or more copies of the chromosome rather than the expected two copies .. organism. organism. chromosome. chromosome. Most eukaryotic species are diploid , meaning they have two sets of chromosomes , whereas prokaryotes are haploid , containing a single chromosome in each cell .. chromosome. chromosome. eukaryotic. eukaryotic. diploid. Ploidy#Diploid. prokaryotes. prokaryotes. haploid. haploid. Aneuploids possess chromosome numbers that are not exact multiples of the haploid number and polysomy is a type of aneuploidy .. chromosome. chromosome. haploid. haploid. A karyotype is the set of chromosomes in an organism and the suffix - somy is used to name aneuploid karyotypes .. organism. organism. karyotype. karyotypes. This is not to be confused with the suffix - ploidy , referring to the number of complete sets of chromosomes .. Polysomy is usually caused by non-disjunction -LRB- the failure of a pair of homologous chromosomes to separate -RRB- during meiosis , but may also be due to a translocation mutation -LRB- a chromosome abnormality caused by rearrangement of parts between nonhomologous chromosomes -RRB- .. chromosome. chromosome. non-disjunction. non-disjunction. meiosis. meiosis. translocation mutation. chromosomal translocation. Polysomy is found in many diseases , including Down syndrome in humans where affected individuals possess three copies -LRB- trisomy -RRB- of chromosome 21 .. chromosome. chromosome. Down syndrome. Down syndrome. trisomy. Trisomy#Trisomy. chromosome 21. Chromosome 21 ( human ). Polysomic inheritance occurs during meiosis when chiasmata form between more than two homologous partners , producing multivalent chromosomes .. meiosis. meiosis. chiasmata. chiasma ( genetics ). Autopolyploids may show polysomic inheritance of all the linkage groups , and their fertility may be reduced due unbalanced chromosome numbers in the gametes .. chromosome. chromosome. In tetrasomic inheritance , four copies of a linkage group rather than two -LRB- tetrasomy -RRB- assort two-by-two .. tetrasomy. tetrasomy
not_related.