Which of the following best defines nondisjunction?
a. repetitive replications of the same piece of a chromosome
b. complete exchange of chromosome pieces
c. loss of a piece of a chromosome
d. failure of chromosome pairs to separate

i believe that the answer is c.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.