Kinetochores and Chromosome Movement

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

They initiate the formation of the spindle apparatus.
They facilitate the separation of homologous chromosomes.
They regulate the timing of cytokinesis.
They serve as attachment points for microtubules during chromosome movement. (correct)

<p>By shortening through depolymerization at the kinetochore ends. (A)</p> Signup and view all the answers

<p>An imaginary line where chromosomes align in the middle of the cell. (B)</p> Signup and view all the answers

Protein complexes located at centromeres of chromosomes.

Phase where spindle microtubules attach to kinetochores and move chromosomes.

Imaginary line in the middle of the cell where chromosomes align during metaphase.

Phase of mitosis where sister chromatids separate and move to opposite poles.

Signup and view all the flashcards

Microtubules that attach to kinetochores and move chromosomes during anaphase.

Signup and view all the flashcards

Identical copies of a chromosome joined together.

Signup and view all the flashcards

Region of a chromosome where sister chromatids are joined.

Signup and view all the flashcards

Kinetochores are protein complexes located at centromeres.
During prometaphase, spindle microtubules attach to kinetochores, initiating chromosome movement.
At metaphase, chromosomes align at the metaphase plate, the central point between spindle poles.
In anaphase, sister chromatids separate and move to opposite poles along kinetochore microtubules.
Kinetochore microtubules shorten by depolymerizing at their kinetochore ends.