Nondisjunction occurs when O there is a change in a gene's DNA sequence which alters an amino acid sequence.
O homologous chromosomes fail to separate.
O the chromosomes separate, but genes are lost.
O genes are expressed, but the DNA sequence is damaged.

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.