A women with 47 chromosomes due to three copies of chromosome 21 is characterized by:
A women with 47 chromosomes due to three copies of chromosome 21 is characterized by:
superfemaleness
triploidy
turner syndrome
down syndrome.
Solution
Down Syndrome is a chromosomal aneuploidy, caused by an extra copy of chromosome 21 known as trisomy 21. Turner syndrome is caused by partial or complete loss (monosomy) of the second sex chromosome $(22+\mathrm{XO})$. Triploidy is the presence of an additional set of chromosomes in the cell for a total of 69 chromosomes rather than the normal 46 chromosomes per cell.