Final answer:
A student with Down syndrome is most likely to exhibit cognitive impairment, characterized by intellectual disability and cognitive disruption. Down syndrome, a result of an extra chromosome 21, often leads to various developmental and health-related issues, but does not necessarily involve severe behavioral problems, blindness, or an inability to walk.
Step-by-step explanation:
The student with Down syndrome would most likely exhibit cognitive impairment. Down syndrome, also known as trisomy 21 or 47 XY +21, is a chromosomal condition that typically causes various degrees of intellectual disability, which can lead to lowered intelligence and cognitive disruption. It is also associated with physical growth delays, characteristic facial features, and may include congenital heart disease, vision problems, and a higher risk of certain types of cancer. While each individual with Down syndrome is unique and may experience a range of different symptoms, the common thread among them is some level of intellectual disability. It is important to note that while Down syndrome can be associated with medical and developmental challenges, many individuals with Down syndrome lead fulfilling lives with the appropriate support and resources.