What are attached at the centromere quizlet?
The centromere is the part of a chromosome that links sister chromatids. During mitosis, spindle fibers attach to the centromere via the kinetochore.
What is attached to the chromosome?
Kinetochore microtubules attach the chromosomes to the spindle pole; interpolar microtubules extend from the spindle pole across the equator, almost to the opposite spindle pole; and astral microtubules extend from the spindle pole to the cell membrane.
What are attached at the centromere?
Sister Chromatids Are Joined Together at Centromeres
In addition to their kinetochore-related function, centromeres perform another essential role in mitosis by serving as the sites of sister chromatid cohesion. For accurate mitoses, sister chromatids must remain attached until the spindle checkpoint has been passed.
What are attached by the centromere?
The centromere is the chromosome region that attaches to a spindle fibre at metaphase of mitosis or meiosis and moves to the spindle pole at anaphase, pulling the rest of the chromosome behind it. … The two chromatids into which metaphase chromosomes are usually visibly divided are held together in the centromere region.
What are the parts of chromosomes?
A chromosome has generally 8 parts; Centromere or primary constriction or kinetochore, chromatids, chromatin, secondary constriction, telomere, chromomere, chromonema, and matrix.
What joins the chromatids in a chromosome?
genetics. …of two identical replicas, called chromatids, joined at a point called the centromere.
What type of chromosome is located on the centromere?
Metacentric chromosomes have the centromere located midway between the ends of the chromosome, separating the two arms of the chromosome (Figure 1).
What holds the chromatids together?
what is a centromere? the middle part of a chromosome that holds the sister chromatids together.