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
Related Questions
Choose the correct sequence of two main events in mitosis
Karyokinesis followed by cytokinesis
Cytokinesis followed by karyokinesis
Karyokinesis followed by separation of the daughter cells
Cytokinesis followed by separation of the daughter cells
Which type of cell division helps in regeneration of cells?
Mitosis
Amitosis
Meiosis
Karyokinesis
During mitosis, number of chromosomes gets
Change
No change
May be change if cell is mature
May be change if cell is immature
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.
Which of the following type of cell cycle is known as equational division?
Mitosis
Meiosis I
Meiosis II
Interphase
Centrioles undergo duplication during (i) of (ii), and begin to move towards opposite poles of the cell during (iii) stage of (iv)
i-S phase, ii-inter phase, iii- Prophase, iv-Mitosis
i-S phase, ii-Inter phase, iii-Anaphase, iv- Mitosis
i-Prophase, ii-Mitosis, iii-Metaphase, iv- Mitosis
i-Prophase, ii-Mitosis, iii-Anaphase, iv-Mitosis
Mitosis is divided into
Five stages
Three stages
Four stages
Six stages
Which of the following events is NOT characteristic of mitotic cell division?
Condensation of chromosomes
Replication of DNA
Synapsis and crossing over
Formation of the spindle apparatus
How many generations of mitosis are required for producing 32 cells?
16
32
8
5
During which phase of mitosis do the sister chromatids begin to separate and move towards opposite poles of the cell?
Prophase
Metaphase
Anaphase
Telophase
