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.
The genetic material distribution in daughter cells produced by amitosis, compared to the parent cell, is generally:
Exactly identical
Significantly different
Randomly distributed with no predictable pattern
Approximately equal but not necessarily identical
Which statement BEST differentiates amitosis from other forms of nuclear division like mitosis and meiosis?
Amitosis involves DNA replication, while mitosis and meiosis do not.
Amitosis produces genetically identical daughter cells, while mitosis and meiosis produce genetically diverse cells.
Amitosis occurs in somatic cells, while mitosis and meiosis occur in germ cells.
Amitosis lacks chromosome condensation and spindle formation, unlike mitosis and meiosis.
A researcher is studying mitosis in a novel diploid organism with 2n = 16 chromosomes. During metaphase, a drug is applied that inhibits the separation of sister chromatids but allows the cell to progress through anaphase and telophase. At the end of this aberrant cell division, what is the most likely chromosomal composition of the resulting daughter cells?
Two diploid cells (2n=16) each
One diploid cell (2n=16) and one cell with no chromosomes
One tetraploid cell (4n=32)
Two cells with 8 chromosomes each
In an experiment, cells are arrested in metaphase using colchicine, a drug that inhibits microtubule polymerization. If these cells are then fused with cells in G1 phase, what is the most likely outcome for the G1 chromosomes?
The G1 chromosomes will replicate their DNA.
The G1 chromosomes will condense prematurely.
The G1 chromosomes will remain unaffected.
The G1 chromosomes will fragment.
In a certain species, a reciprocal translocation has occurred between chromosome 1 and chromosome 2. During meiosis in a heterozygote for this translocation, what structure is MOST likely to be observed during Prophase I?
A bivalent
A univalent
A trivalent
A quadrivalent
If a cell has 2n chromosomes at the beginning of interphase, how many chromatids will it have at the end of S phase?
n
2n
3n
4n
Which phase of mitosis is characterized by the condensation of chromatin into visible chromosomes?
Prophase
Metaphase
Anaphase
Telophase
During which phase of mitosis do the sister chromatids separate?
Prophase
Metaphase
Anaphase
Telophase
The spindle fibers attach to the chromosomes at the:
Centromere
Kinetochore
Telomere
Chromatid
In which phase of mitosis do chromosomes align at the center of the cell?
Prophase
Metaphase
Anaphase
Telophase
