Achromosome-transmitted form of intellectual disability caused by the presence of an extra copy of chromosome 21 is called what?

Down syndrome

Explanation:

Down syndrome, also known as Trisomy 21 is characterized by an extra copy of chromosome on its position 21 seen as XXY.

This results in cognitive development coupled with intellectual and delayed physical growth

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy