Sandy was born with a small nose, protruding lips and tongue, and chromosome 21 was present in triplicate. Sandy was most likely born with _____.

Question

Quizplus · Accepted Answer

The physical characteristics described are common in individuals with Down syndrome, which is caused by the presence of an extra copy of chromosome 21. Klinefelter syndrome involves an extra X chromosome, Fragile X syndrome involves a mutation in the FMR1 gene, and Tay-Sachs disease is a genetic disorder that primarily affects the nervous system and is caused by the absence of an enzyme. These conditions do not typically involve the physical characteristics described for Sandy.

Sandy Was Born with a Small Nose, Protruding Lips and Tongue