Errors can occur when the chromosomes segregate into the gametes during meiosis resulting in egg or sperm with too many or too few chromosomes. As a result, fertilised eggs and the ensuing embryos may have trisomy (an extra chromosome of a particular pair) in each cell or monosomy (one chromosome fewer in each cell).
Earth’s thin, rocky outer layer is its crust. A small example is like a crust on a piece of bread. :)
C is your answer
The last option: over tens of millions of years, the giant supercontinent Pangaea began to slowly drift apart forming the continents
The part of the enzyme molecule that binds to its associated substrate is ACTIVE SITE.
The active site contains the catalytic groups which are amino acids which promote the formation and the break down of bonds. By breaking and forming new bonds, the enzyme substrate interaction brings about the formation of the transition state.
