The failure of monosomic individuals to survive is most closely connected with which of the following terms?
a. gene duplication
b. gene redundancy
c. X-inactivation
d. inversion
e. haploinsufficiency
The correct answer is option e - haploinsufficiency
Explanation: Monosomy means one chromosome of a pair of homologous chromosome is missing. Haploinsufficiency means a single copy of a gene is unable to produce the standard genotype. In monosomy, as one chromosome is missing of a homologous pair, the genes on the existing pair of chromosome becomes single copy and therefore haploid. They cannot meet the need of the body and hence the monosomic person dies.
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