CELL STRUCTURES AND FUNCTION
CELL DIVISION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Mitosis
|
|
|
Meiosis
|
|
|
Both
|
|
|
None of the above
|
Detailed explanation-1: -There are two major events that occur in both mitosis and meiosis i.e. the division of nuclear material called karyokinesis and the division of cytoplasm called cytokinesis. Karyokinesis means the process of division of the nucleus during mitosis or meiosis.
Detailed explanation-2: -Which of the following does NOT occur in both mitosis and meiosis? Splitting of homologous pairs of chromosomes.
Detailed explanation-3: -Crossing over does not occur in mitosis. Explanation: Mitosis is cellular cloning. This means that Mitosis ends with two identical cells; no variation.
Detailed explanation-4: -Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II. In meiosis II, these chromosomes are further separated into sister chromatids. Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.