A child has severe intellectual disability, developmental delay, autism and unusual facial features, His mother had...

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A child has severe intellectual disability, developmental delay,autism and unusual facial features, His mother had a learningdisability and slightly delayed development. Genome sequencing aswell as karyotyping reveal that the child has excess material fromchromosome 9 and 14 and too little from chromosome 10. Th motherhas all of the genetic material, but she has four â€œderivativeâ€chromosomes â€“ they have seemingly mixed and matched their parts.These chromosomes consist of pieces of 9, 10, and 14; 9, 10, and16; and 9 and 4.

a. What chromosomal event has likely occurred?
b. How can the nature of the chromosomal event explain the motherâ€™slearning disability and developmental delay, but good healthotherwise and a full genome?

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3.8 Ratings (619 Votes)

As stated the mother has all the genetic material but still there is mix matching of some parts of the four derivatives like 910 149 10 16 94 A There is condition in which some of the chromosomes gets mix matched or rearranged named as Chromosomal See Answer

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