5. Normally, each cell of a specific organism contains 64 chromosomes. However, some cells in that organism may each contain only 32 chromosomes as a result of
A. crossing-over B. mitotic cell division
C. meiotic cell division
D. regeneration

What is thought to have caused the mass extinction at the end of the cretaceous period?

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

Physical characteristics of down syndrome