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During prophase each pair of chromosomes is attached to each other by the?
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∙ 14y ago
centromere
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∙ 14y ago
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The phase of mitosis during which chromosomes become visible and the centrioles separate from one another is?
Prophase. The chromosomes become more conspicuous because they gradually condense during prophase. The centrioles separate in animal cells; plant cells lack centrioles.
What process helps make meiotic cells genetically different and occurs during prophase but not during prophase 2?
Th process of independent orientation of chromosomes while in their tetrad forms. But, the more important process that also happens in prophase I is the process of crossing over where chromosomes, male and female, exchange regions of the chromosomes, one with the other.
What happens during prophase you that does not happen during mitosis?
Prophase is one of the stages in the process of mitosis, the stages of mistosis are : 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase. So metaphase, anaphase, and telophase are what happends in mitosis and does not happen in prophase. And what happens in prophase that does not in mitosis is that the sister chromatids that were formed during interphase have shortened and thickened and are now visible with a light microscope.
Where does recombination of DNA occur?
Recombination occurs when two molecules of DNA exchange pieces of their genetic material with each other. One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA
What phase of meiosis does independent assortment happen?
The independent assortment happens in the following steps in the meiosis 1. During the Pachytene stage of prophase I of the meiosis one the genes in the homologous chromosomes mixes randomly among each other by a process called crossing over and largely responsible for the variation between the siblings. 2. Metaphase 1 : The random assortment of bivalent takes place. 3. MetaphaeII : The chromosomes move randomly to the equator
How do the chromosomes become different from eachotther in meiosis?
The chromosomes become different from each other due to crossing over which occurs during prophase I.
When can you see DNA?
Chromosomes become visible (under a microscope) during prophase. At other times DNA is generally difficult to see.
The phase of mitosis during which chromosomes become visible and the centrioles separate from one another is?
Prophase. The chromosomes become more conspicuous because they gradually condense during prophase. The centrioles separate in animal cells; plant cells lack centrioles.
What process helps make meiotic cells genetically different and occurs during prophase but not during prophase 2?
Th process of independent orientation of chromosomes while in their tetrad forms. But, the more important process that also happens in prophase I is the process of crossing over where chromosomes, male and female, exchange regions of the chromosomes, one with the other.
What phase of meiosis do homologous chromosomes cross over?
Crossing over begins early in prophase I of meiosis. At the time, homologous chromosomes Are paired along their lengths. Each gene on one homologue ia alined precisely with the corresponding gene on the other homologue. Source: my science book copy right 2006
How can you tell the difference between interphase and prophase?
Prophase is the first stage of cell division where the chromosomes appear as paired chromatids. Metaphase on the other hand, is the second stage where the chromosomes get attached to the spindle fibers.
What happens during prophase you that does not happen during mitosis?
Prophase is one of the stages in the process of mitosis, the stages of mistosis are : 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase. So metaphase, anaphase, and telophase are what happends in mitosis and does not happen in prophase. And what happens in prophase that does not in mitosis is that the sister chromatids that were formed during interphase have shortened and thickened and are now visible with a light microscope.
Where does recombination of DNA occur?
Recombination occurs when two molecules of DNA exchange pieces of their genetic material with each other. One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA
Crossing over occurs during which phase of meiosis?
Crossing over occurs during Prophase I of meiosis.
What phase of meiosis does independent assortment happen?
The independent assortment happens in the following steps in the meiosis 1. During the Pachytene stage of prophase I of the meiosis one the genes in the homologous chromosomes mixes randomly among each other by a process called crossing over and largely responsible for the variation between the siblings. 2. Metaphase 1 : The random assortment of bivalent takes place. 3. MetaphaeII : The chromosomes move randomly to the equator
What does prophase do in the cell cycle?
During prophase, the chromatin fibers in the nucleus coil tightly and condense into observable chromosomes. The mitotic spindle then begins to form and the centrosomes move away from each other.
What happens during prophase of mitosis?
Daughter chrmosomes are distributed to two daughter nuclei.
