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
Related Questions
The cell cycle of yeast takes about
24 hrs
60 min
30 min
90 min
During which phase of the cell cycle does DNA replication occur, which is a prerequisite for mitosis?
G1 phase
S phase
G2 phase
M phase
The phragmoplast is organized at the
Beginning of anaphase
End of anaphase
Beginning of telophase
End of telophase
A scientist observes a dividing cell under a microscope. No crossing over is observed. Which type of cell division is MOST likely being observed?
Meiosis I
Meiosis II
Mitosis
Cytokinesis
I. Phases of cell cycle are controlled by proteins, …A… and …B…
II. There are two regulatory mechanisms, called …C… which take decision about cell division.
III. The second check point, called …D… is responsible for transition from to M-phase.
Identify A-D to complete the given statements (I-III)
A. Cyclins; B. CDKs; C. Checkpoints and growth factors; D. checkpoint
A. CDKs; B. Cyclins; C. Growth factors and kinases; D. M checkpoint
A. Kinases; B. Cyclins; C. Checkpoints and cyclins; D. checkpoint
A. Cyclins; B. CDKs; C. Mitosis promoting factors; D. S checkpoint
Congression is a phenomenon of
Movement of sister chromatids towards the poles
Pairing of homologous chromosomes
Separation of paired chromosomes
Bringing the chromosomes on equator of spindle apparatus
Which of the following statements is INCORRECT regarding mitosis?
Mitosis results in two daughter cells with identical genetic information to the parent cell.
Mitosis is the process by which gametes are produced.
Mitosis is essential for growth and repair in multicellular organisms.
The chromosome number remains the same after mitosis.
Chromosome reaches their respective poles in which of the following stages of mitosis?
Cytokinesis
Interphase
S-phase
Telophase
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.
