Prepare for NEET Biology Cell Cycle and Cell Division with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert help for mitosis and meiosis understanding.
Which of the following is NOT a characteristic feature observed during amitosis?
Division of cytoplasm
Constriction of the nucleus
Appearance of chromosomes
Division of the nucleolus (sometimes)
In which of the following organisms is amitosis MOST commonly observed?
Higher plants and animals
Fungi and algae
Prokaryotes and some lower eukaryotes
Viruses and bacteriophages
Amitosis is sometimes associated with:
Rapidly dividing embryonic cells
Cells undergoing meiosis
Aging or diseased cells
Cells actively involved in tissue repair
A cell in G2 phase has 4.8 pg of DNA. After completing mitosis, how much DNA would each daughter cell contain if cytokinesis is successful?
9.6 pg
4.8 pg
2.4 pg
1.2 pg
Which of the following events does NOT occur during prometaphase of mitosis?
Breakdown of the nuclear envelope
Attachment of kinetochore microtubules to chromosomes
Movement of chromosomes towards the metaphase plate
Replication of the centrosomes
During which stage of interphase are the majority of cellular organelles duplicated?
G1
S
G2
M
If a cell has 4 picograms (pg) of DNA after meiosis I, how much DNA did the original cell have during G1 phase?
2 pg
4 pg
8 pg
16 pg
In a plant species with a diploid number of 12, a mutation causes complete failure of cytokinesis following telophase II of meiosis. What would be the ploidy of the resulting megaspore?
Haploid (n=6)
Diploid (2n=12)
Triploid (3n=18)
Tetraploid (4n=24)
During which phase of mitosis do the sister chromatids begin to separate and move towards opposite poles of the cell?
Prophase
Metaphase
Anaphase
Telophase
Which of the following is NOT a function of mitosis?
Growth and development
Repair of tissues
Replacement of damaged cells
Production of gametes