The karyotype of a young girl who is affected with Down syndrome revealed that she has 46 chromosomes. Her phenotypically normal older brother's karyotype revealed that he has 45 chromosomes. (a) Propose an explanantion for the chromosome number in both children (b) What would you expect the chromosome number of the parents of these two children?
The karyotype of a young girl who is affected with Down syndrome revealed that she has 46 chromosomes. Her
(a) Propose an explanantion for the chromosome number in both children
(b) What would you expect the chromosome number of the parents of these two children?
Changes or alterations in the genetic material of an organism that lead to mutations. Mutations are induced by environmental factors, errors in DNA replication, any other genetic processes, or exposure to chemicals. There are various types of mutations, including point mutations, frameshift mutations, and chromosomal mutations. The chromosomal mutation involves alteration in structure and number of the chromosomes.
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