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Polar fibers extend across the cell from centriole to centriole. Kinetochore fibers extend from the centromeres of a chromosome to the entrioles.
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∙ 12y ago
Kinetochore fibers are microtubules that attach to the kinetochore region of a chromosome during cell division, helping to pull the chromosome apart. Polar fibers, on the other hand, are microtubules that interact with each other and help push the poles of the cell apart during cell division, providing structural support.
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What does not belong centrioles vesicles kinetochore fibers polar fibers?
Vesicles do not belong as they are membrane-bound sacs used for transport within the cell, while centrioles, kinetochore fibers, and polar fibers are all involved in cell division.
What happens during late prophase?
During late prophase, the nuclear envelope disintegrates, allowing the spindle fibers to fully capture and organize the chromosomes. The chromosomes become more condensed and visible as sister chromatids are tightly coiled. This stage prepares the cell for metaphase.
What is the function of polar microtubules?
Polar microtubules are a type of microtubule that play a key role in cellular processes such as cell division (mitosis and meiosis). They help in organizing and segregating chromosomes during cell division by attaching to the kinetochore proteins on chromosomes and facilitating their movement. Additionally, polar microtubules contribute to the overall structure and organization of the cell's cytoskeleton.
What structures make up the fibers of the mitotic spindle?
The mitotic spindle is composed of microtubules, which are dynamic structures made up of tubulin protein subunits. It consists of three main types of microtubules: kinetochore microtubules that attach to the chromosomes, polar microtubules that interact with each other to help push the poles of the cell apart, and astral microtubules that anchor the spindle poles to the cell membrane.
Describe the structure and function of the spindle during mitosis?
Spindle fibers are necessary in mitosis as they help in bringing half the number of chromosomes on each side of the cell, so that when the cell divides, the chromosomes are distributed equally in both the daughter nuclei.
Two types of fibers in fibrocartilage?
Collagen fibers and elastin fibers are the two main types of fibers found in fibrocartilage. Collagen fibers provide strength and support, while elastin fibers provide flexibility and resilience to the tissue.
What does not belong centrioles vesicles kinetochore fibers polar fibers?
Vesicles do not belong as they are membrane-bound sacs used for transport within the cell, while centrioles, kinetochore fibers, and polar fibers are all involved in cell division.
What distinguish between polar and non polar dielectrics?
b c polar molecules are easily soluable in water thanthe non polar molecules
What happens during late prophase?
During late prophase, the nuclear envelope disintegrates, allowing the spindle fibers to fully capture and organize the chromosomes. The chromosomes become more condensed and visible as sister chromatids are tightly coiled. This stage prepares the cell for metaphase.
What is polar fleece knit or woven?
I would say that polar fleece is a woven fabric, made with synthetic fibers.
What is polar fleece made of?
Polyethylene terephthalate (PET) or other synthetic fibers.
What type of intermolecular forces predominate between cellulose fibers?
Hydrogen bonding is the primary type of intermolecular force that predominates between cellulose fibers. These forces are responsible for the strong interactions between cellulose molecules, contributing to the structural integrity and stability of cellulose fibers.
Why doesn't polar fleece fray?
Polar fleece is made from synthetic fibers that are knit or woven in a way that prevents fraying. The fibers are bound tightly together, creating a smooth edge that resists unraveling.
The fibers that extend from centrosome to centrosome during mitosis are what?
The fibers that extend from centrosome to centrosome during mitosis are called spindle fibers. They are made up of microtubules and play a key role in the separation of chromosomes during cell division.
What is the function of polar microtubules?
Polar microtubules are a type of microtubule that play a key role in cellular processes such as cell division (mitosis and meiosis). They help in organizing and segregating chromosomes during cell division by attaching to the kinetochore proteins on chromosomes and facilitating their movement. Additionally, polar microtubules contribute to the overall structure and organization of the cell's cytoskeleton.
Is carbon dioxide polar or non- polar?
It is a non-polar molecule. But it has polar covalent bonds between its atoms
What structures make up the fibers of the mitotic spindle?
The mitotic spindle is composed of microtubules, which are dynamic structures made up of tubulin protein subunits. It consists of three main types of microtubules: kinetochore microtubules that attach to the chromosomes, polar microtubules that interact with each other to help push the poles of the cell apart, and astral microtubules that anchor the spindle poles to the cell membrane.
