The diagram shows two models of the cellular division process. Which of the following describes how both of these cellular division processes maintain genetic continuity for both multicellular and unicellular organisms? a Both process involve the recombination and division of new genetic material. b Both processes creates cells with half the genetic material of the parent cells. c Both processes create cells with twice the genetic material of the parent cells. d Both processes involve the replication and division of identical genetic material.

Answer 1

The correct answer is: d Both processes involve the replication and division of identical genetic material.

This option describes how both mitosis and meiosis maintain genetic continuity. In mitosis, the genetic material is replicated and then divided, resulting in two daughter cells that are genetically identical to the parent cell. In meiosis, while there is recombination and genetic variation introduced, the initial replication of genetic material ensures that the cells (gametes) formed still contain related genetic material that can combine during fertilization to maintain genetic continuity in multicellular organisms.