0
Which organelle sends out microtubules that connect to DNA during metaphase?
Wiki User
∙ 9y ago
The centrioles are organelles in the cell that sends out microtubules that connect to the DBA during the metaphase. These centrioles determine the position of the nucleus and plays a crucial role in the spatial arrangement of the cell.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What guide or pull chromosomes during mitosis?
During metaphase, the spindles, or microtubules, all start to move to opposite ends. There, they grab the chromatids and pull them back to their opposite sides.
What is the function of an aster?
Asters are microtubules(components of the cellular cytoskeleton) produced by centrioles. Their function is to hold the two centrioles in place at the two poles of the cell during cell division(mitosis). Spindle fibres produced by the centrioles are also microtubules which help in organising chromosomes at the equatorial plane of the cell during metaphase. Mitosis in which asters are formed is called astral mitosis.
During what phase of meiosis do replicated homologous chromosomes line up next to each other at the cell's equator-?
It is during the anaphase of meiosis that the replicated homologous chromosomes line up next to each other at the cell's equator.
In which stage do chromosomes independently assort?
Metaphase I during meiosis
What is the activity of chromosomes in metaphase 1 of meiosis?
In Mitosis during Metaphase, the chromosomes line up on the metaphase plate, but without their homologues. In Meiosis during Metaphase I, the tetrads line up on the metaphase plate. Then it's back to double-stranded chromosomes lining up in Metaphase II. I
Why is colchicine used for preparing a metaphase spread?
Colchicine is a drug that prevents tubulin polymerisation into cytoskeleton structures called microtubules. Microtubules are essential for many functions of the cell, but importantly are needed for cell division. Specifically, they help align homologous chromosomes on the metaphase plate during metaphase and then separate the chromosome pairs during anaphase. So by inhibiting the production of microtubules, the chromosomes never align on the metaphase plate - they will be fully condensed but spread throughout the cell, a situation called a metaphase spread
What is the function of the centriole pair?
It organizes the microtubules in mitosis. The microtubules move the chromosomes around the cell during mitosis, most importantly lining the chromosomes up at the metaphase plate in metaphase so that they can split up into the two daughter cells.
What pulls chromosomes during during mitosis?
During metaphase, the spindles, or microtubules, all start to move to opposite ends. There, they grab the chromatids and pull them back to their opposite sides.
Where are chromosomes located during metaphase?
During metaphase, the chromosomes begin their line up along the metaphase plate, or an imaginary plate located at the midpoint between the two poles of the cell where the centrosomes are located. The chromosomes are placed their by the spindle fiber that are microtubules protruding from the centrosomes and attach to the centromeres.
What guide or pull chromosomes during mitosis?
During metaphase, the spindles, or microtubules, all start to move to opposite ends. There, they grab the chromatids and pull them back to their opposite sides.
The phase of mitosis in which microtubules connect the centromere of each chromosome to the poles of the pindle?
The name for the network of microtubules along which the chromosomes move during cell division is called the spindle fibers. These spindle fibers attach to the chromosomes and pull them in half.
What organelle aids the cell during mitosis?
the centrioles. two of these together are a centrosome which release the microtubules in the cell division. the microtubules are what "grab" the chromosomes and pull them apart into chromotids in metaphase and anaphase in mitosis.
Is cytoskeleton used for division?
Yes. microtubules are part of the cytoskeleton and help separate the DNA during metaphase and anaphase of mitosis. But generally, cytoskeleton is only for cell structure.
Homologous chromosomes pair and undergo crossing over during?
Paired homologous chromosomes are found at the spindle equator during metaphase. During metaphase the chromosomes line up on the plate and attach to the fully formed spindle.
What happens in metaphase 2?
During metaphase of meiosis 2, or metaphase II, there are 3 major points. 1st is the chromosomes are positioned on the metaphase plate as in mitosis. 2nd is, because of the crossing over in meiosis I, the two sister chromatids of each chromosome are not genetically identical. 3rd is the kinetochores of sister chromatids are attached to microtubules extending from opposite poles.
What is the function of an aster?
Asters are microtubules(components of the cellular cytoskeleton) produced by centrioles. Their function is to hold the two centrioles in place at the two poles of the cell during cell division(mitosis). Spindle fibres produced by the centrioles are also microtubules which help in organising chromosomes at the equatorial plane of the cell during metaphase. Mitosis in which asters are formed is called astral mitosis.
What produces microtubules during cell division in animals?
kinetochore microtubules are located in the centrosomes and produce the microtubules
