Moderate 791 likes

Question

In a certain phase of mitosis nuclear reticulum is reconstructed, nuclear membrane reappears, regeneration of nucleolus takes place and Spindle fibre disappears. What is the phase?

(a) Prophase

(b) Telophase

(c) Metaphase

(d) Anaphase

WBBSE Class X Life Science 02 (a) Cell Division and Cell Cycle 01 Mark 2024

Answer

(b) Telophase

Explanation:

Telophase is the final phase of mitosis where several reversal events occur to restore the nucleus to its interphase state. During telophase, the chromosomes reach the poles, uncoil, and become less distinct. The nuclear envelope forms again around each set of chromosomes, the nucleolus reappears, and the spindle fibers disassemble. This prepares the cell for the subsequent division of the cytoplasm (cytokinesis).

Related Questions

More WBBSE Moderate level questions

1/12
Moderate
514
Q. Mitotic cell division occurs while producing haploid spores. State True or False
A. False. Explanation: Mitotic cell division produces daughter cells that are genetically identical...
Moderate
624
Q. Spindle fibres and chromosomes are not formed in the ____ cell division.
A. Spindle fibres and chromosomes are not formed in the amitotic cell division....
Moderate
814
Q. Write the name of the chemical constituents of eukaryotic chromosome with the help of a...
A. Chemical Constituents of Eukaryotic Chromosome Chemical Constituent Role DNA Carries genetic information...
Moderate
757
Q. Write one function each of the following five parts of a neuron
A. Part of Neuron Function Dendron Receives signals from other neurons Axon Conducts...
Moderate
551
Q. Draw a scientific diagram of neuron and label the following parts: [3+2=5]
A. Label Diagram of Neuron OR Label diagram of eukaryotic chromosome
Moderate
947
Q. How does the Cytokinesis of plant cell happen?
A. Cytokinesis in plant cells occurs by the formation of a cell plate...
Moderate
554
Q. Cell division becomes uncontrolled if the function of checkpoints becomes hampered — True or False?
A. True Explanation Cell cycle checkpoints are control mechanisms that ensure the proper...
Moderate
707
Q. State True or False: The daughter cells are changed and modified in different ways during...
A. True Explanation: During differentiation, daughter cells undergo structural and functional changes to...
Moderate
928
Q. In ____ cell division spindle fibres are not formed.
A. meiosis Explanation During meiosis, specifically in the first division (meiosis I), spindle...
Easy
803
Q. What is the function of lysosome?
A. Lysosome helps in intracellular digestion by containing digestive enzymes. Explanation: Lysosomes act...
Easy
735
Q. Purine : Adenine :: Pyrimidine : _____
A. Thymine. Explanation: Adenine is a purine base, and thymine is a pyrimidine...
Easy
770
Q. Which structural part of a chromosome may occur either in the middle or at any...
A. (d) Centromere Explanation: The centromere is the constricted region of a chromosome...