Related Questions
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
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
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
Which stage of cell division is affected if a plant cell has double the expected number of chromosomes and lacks a cell plate, and what is the resulting cellular condition?
Prophase; aneuploidy
Metaphase; apoptosis
Anaphase; nondisjunction
Telophase/Cytokinesis; polyploidy
The phragmoplast is organized at the
Beginning of anaphase
End of anaphase
Beginning of telophase
End of telophase
A plant cell at telophase contains 48 chromosomes, while other cells at the same stage have 24. No cell plate is observed. What type of cell has likely been formed?
Haploid cell
Diploid cell
Triploid cell
Polyploid cell
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 character is related with telophase?
Formation of nuclear membrane
Formation of nucleolus
Elongation of chromosome
Formation of two daughter nuclei
A student observes a plant cell at telophase that lacks a cell plate. This cell has double the chromosome number compared to other cells at telophase. What is the likely outcome of this observation?
Formation of a polyploid cell
Cell death
Normal cell division
Formation of two daughter cells
In which phase of mitosis does the nuclear envelope begin to reform around the separated chromosomes?
Prophase
Metaphase
Anaphase
Telophase