Related Questions
If a cell has 20 chromosomes at the beginning of mitosis, how many chromosomes will each daughter cell have at the end of mitosis?
10
20
40
80
If a cell undergoing division exhibits synapsis and crossing over, which type of cell division is it NOT undergoing?
Mitosis
Meiosis I
Meiosis II
Binary fission
How many generations of mitosis are required for producing 32 cells?
16
32
8
5
If cytokinesis fails during telophase in a plant cell, what would be the observed chromosome number in the resulting cell, and what structure would be missing?
Half the normal number; cell wall
Double the normal number; cell plate
Normal number; nuclear membrane
Triple the normal number; spindle fibers
Which of the following accurately describes the role of motor proteins during anaphase of mitosis?
Kinesins move chromosomes towards the minus ends of kinetochore microtubules, and dyneins move chromosomes towards the plus ends.
Dyneins move chromosomes towards the poles along kinetochore microtubules, while kinesins are involved in cytokinesis.
Kinesins move chromosomes towards the plus ends of kinetochore microtubules, while dyneins move the poles apart by acting on astral microtubules.
Both kinesins and dyneins move chromosomes towards the poles along kinetochore microtubules, with kinesins acting on the leading edge and dyneins on the trailing edge.
The Anaphase Promoting Complex (APC) targets specific proteins for degradation during mitosis. A mutation in the gene encoding APC would most likely result in which of the following?
Premature entry into anaphase
Inability to progress from metaphase to anaphase
Failure of DNA replication
Increased rate of cytokinesis
During telophase, a plant cell is observed to have twice the number of chromosomes as other cells at the same stage. No cell plate is forming. This suggests a problem with which process, and what is the likely consequence?
Mitosis; cell death
Meiosis; formation of gametes
Cytokinesis; polyploid cell formation
Interphase; DNA replication error
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
A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in:
Aneuploidy
Polyploidy
Somaclonal variation
Polyteny
In a plant cell undergoing mitosis, a mutation disrupts the function of phragmoplastin. Which stage of mitosis will be most directly affected, and what would be the observable consequence?
Prophase; failure of chromosome condensation
Metaphase; misalignment of chromosomes at the metaphase plate
Anaphase; inability of sister chromatids to separate
Cytokinesis; incomplete cell wall formation
