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
Related Questions
Which one of the following precedes re-formation of the nuclear envelope during M-phase of the cell cycle?
Decondensation from chromosome and reassembly of the nuclear lamina
Transcription from chromosomes and reassembly of the nuclear lamina
Formation of the contractile ring and formation of the phragmoplast
Formation of the contractile ring and transcription from chromosomes
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
I. Chromosomes cluster at opposite spindle poles their identity is lost as discrete elements
II. Nuclear envelope assembles around the chromosome clusters
III. Nucleolus, Golgi complex and ER reform
Above features indicates which phase of mitosis
Anaphase
Telophase
Cytokinesis
S-phase
Identify A-C in the given statements, and choose the correct option
I. Spindle microtubules that extend from the two poles of a dividing cell are called …A…
II. A centromere connects two identical copies of a single chromosomes. These two copies are called …B…
III. In ‘X’ phase, the paired chromosomes separate and begin moving to opposite ends of the cell. This ‘X’ is called …C…
A-kinetochore fibres; B-chromatids; C-metaphase
A-polar fibres; B-homologous chromosomes; C-Prophase
A-polar fibres; B-sister chromatids; C-anaphase
A-kinetochore fibres; B-asters; C-anaphase
What is the primary advantage of offset reproduction for a plant species?
Rapid colonization
Genetic diversity
Seed dispersal
Cross-pollination
Which of the following functions like mitotic poison?
Colchicine
Monosodium Glutamate
Kinetin
2, 4 – D
If a cell has a twice as much DNA as in a normal functional cell it means that the cell
Is preparing to divide
Has completed division
Has reached the end of its life span
Has ceased to function
The phragmoplast is organized at the
Beginning of anaphase
End of anaphase
Beginning of telophase
End of telophase
The coconut water from tender coconut represents:
Endocarp
Fleshy mesocarp
Free nuclear proembryo
Free nuclear endosperm
I. Chromosomes cluster at opposite spindle poles their identity is lost as discrete elements
II. Nuclear envelope assembles around the chromosome clusters
III. Nucleolus, Golgi complex and ER reform
Above features indicates which phase of mitosis
Anaphase
Telophase
Cytokinesis
S-phase
