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.
Related Questions
The coconut water from tender coconut represents:
Endocarp
Fleshy mesocarp
Free nuclear proembryo
Free nuclear endosperm
What is the average duration for mitosis?
3 min 30 min
3 hr to 5 hr
30 min to 3 hr
2 hr to 3 hr
The plane of alignment of chromosome at the metaphase stage of cell cycle is referred to as the
Prophase plate
Metaphase plate
Anaphase plate
Telophase plate
In which phase of mitosis does the nuclear envelope begin to reform around the separated chromosomes?
Prophase
Metaphase
Anaphase
Telophase
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
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
Which of these is NOT an example of an offset?
Seed
Tuber
Bulb
Rhizome
Duplication of centriole occur in
prophase
metaphase
s - phase
anaphase
After the separation of centromeres during mitosis, the chromatids move towards opposite poles of the spindle. Name the term used for these chromatids
Daughter chromosomes
Sister chromatids
Homologous chromosomes
Non-sister chromatids
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