A baby born with ______ has a genetic disorder with an extra copy of chromosome 21. (Select one answer). fragile X syndrome Klinefelter disease Down syndrome Tay Sach's disease
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Individuals with trisomy $21,$ or __________ and physically retarded and have abnormalities of the face, tongue, and eyelids. (a) Down syndrome (b) Klinefelter syndrome (c) Turner syndrome (d) Huntington's disease (e) Tay-Sachs disease
Adi S.
48) People with Down Syndrome have A) three of all the chromosomes, including X and Y_ a diploid set of autosomes, but only one sex chromosome: a haploid set of chromosomes, plus one extra of number 21. D) a diploid set of chromosomes, except only one of number 21. E) a diploid set of chromosomes, plus one extra of number 21. 49) Most sex-linked conditions are caused by A) genes that only males have. inheritance of an extra X chromosome- genes on the X chromosome_ proteins that damage the X chromosome E) genes that only females have:
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