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If the XIC passes to chromosome 3 in a human what will be the result?(a) Chromosome 3 will have one more protein to express(b) Human race will divide into two species(c) Chromosome 3 will be inactivated(d) There will be sticking of chromosome 3 with other chromosomesI had been asked this question in semester exam.Question is taken from Chromosomal Abnormalities : Translocation in chapter Chromosomal Basis of Inheritance of Cytogenetics

Answer»

Correct option is (c) Chromosome 3 will be inactivated

For explanation: XIC is responsible for SILENCING one of the X chromosomes in a female for dosage compensation. If an XIC is PRESENT within the chromosome 3 it will be considered SIMILAR to an X chromosome and it MAY as well be inactivated.



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