What is Monosomy?

Monosomy

Singleness

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Monosomy

This is a phenomenon in which the number of somatic chromosomes of a diploid is (2n-1), which is a type of low number. This kind of chromosome that lacks one of a pair of homologous chromosomes and the only one remaining is called a monosome. There can be n kinds of chromosome groups without one chromosome, so there are n kinds of corresponding (2n-1) individuals. Examples of haploidity are common hexaploid common wheat (2n = 6x = 42). There may be 21 kinds of monosomics. Another example is the lack of a chromosome IV in Drosophila melanogaster. Haploid individuals, haplo-IV individuals, have one chromosome missing from the smallest pair of chromosomes, which is slightly smaller and lighter than normal individuals. Although fertility is low, it is still Generate offspring.