NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the 1st part of cell division, the nucleus of the cell divides. This is called ____
A
mitosis
B
cytokinesis
C
interphase
D
metaphase
Explanation: 

Detailed explanation-1: -Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. The word “mitosis” means “threads, ” and it refers to the threadlike appearance of chromosomes as the cell prepares to divide.

Detailed explanation-2: -Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.

Detailed explanation-3: -During cell division, the nucleus divides first and then the cytoplasm.

Detailed explanation-4: -Division of the nucleus during cell division is called karyokinesis and is followed by cytokinesis which is the division of the cell cytoplasm.

Detailed explanation-5: -Meiosis I is a type of cell division unique to germ cells, while meiosis II is similar to mitosis. Meiosis I, the first meiotic division, begins with prophase I. During prophase I, the complex of DNA and protein known as chromatin condenses to form chromosomes.

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