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Events occur in the reverse order from the events of prophase you Each cell has only half the genetic information however another cell division is needed because each chromosome is still doubled?
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∙ 13y ago
Telephase
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∙ 13y ago
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What phase that occurs in the reverse order from the events of prophase 1 The cell has only 12 genetic information however another cell division is needed because each chromosome is still doubled?
Telephase
What is the difference between prophase 1 and 2?
DURING PROPHASE I:Crossing over happens in chromosomes where genetic information is swapped from chromosome to another at a chiasma (chiasmata for multiple crossing over sections)Cell is Diploid 46 chromosomesDURING PROPHASE II:No Crossing over at this point, as it has already happened during prophase I.Cell is Haploid 23 chromosomesRead more: What_is_the_difference_between_prophase_I_and_prophase_II_of_meiosis
Where do homologous chromosomes pair and form synapses?
The most common form of synapsis occurs in the nuclei of cells undergoing the type of cell division called meiosis.It occurs during prophase I (i.e. prophase of the first meiotic division). Prophase I is subdivided into five stages, and synapsis occurs in the second of these (zygotene).Synapsis refers to the pairing of homologous chromosomes. For example, the chromosome 5 that you inherited from your mother pairs with the chromosome 5 that you inherited from your Dad. By "pairing" is meant the exact alignment of two chromosomes, so that each point (locus) on one chromosome is beside the corresponding point on the other.It does not only occur during meiosis. Some flies, including the intensively-studied fruit-fly Drosophila, can undergo endomitosis, which is the division of chromosomes without subsequent cytokinesis (splitting of the cytoplasm).The result? A considerable replication of chromosomal material within a single cell. A famous example is the giant (polytene) chromosomes of the salivary glands of Drosophila. In these giant chromosomes the genetic material is aligned, so this is another example of synapsis.
In which phase do chromosomes become visible?
The DNA of a cell condenses to form chromosomes during cell division or mitotis, called the M phase of the cell cycle. Specifically, chromosomes acquire their characteristic X shape in the metaphase stage of mitotis. Each chromosome consists of two sister chromatids joined at the centromere.
What happens when nondisjunction takes place in cell division?
One cell is left without a particular chromosome and another with a duplicated chromosome.Source: An answer on wiki.answers.com that has been modified (by me).
What phase that occurs in the reverse order from the events of prophase 1 The cell has only 12 genetic information however another cell division is needed because each chromosome is still doubled?
Telephase
What is the difference between prophase I and prophase II of meiosis?
Prophase 1 vs Prophase 2 of meiosisDURING PROPHASE I:Crossing over happens in chromosomes where genetic information is swapped from chromosome to another at a chiasma (chiasmata for multiple crossing over sections)Cell is Diploid 46 chromosomesDURING PROPHASE II:No Crossing over at this point, as it has already happened during prophase I.Cell is Haploid 23 chromosomes
What is the difference between prophase 1 and 2?
DURING PROPHASE I:Crossing over happens in chromosomes where genetic information is swapped from chromosome to another at a chiasma (chiasmata for multiple crossing over sections)Cell is Diploid 46 chromosomesDURING PROPHASE II:No Crossing over at this point, as it has already happened during prophase I.Cell is Haploid 23 chromosomesRead more: What_is_the_difference_between_prophase_I_and_prophase_II_of_meiosis
Where do homologous chromosomes pair and form synapses?
The most common form of synapsis occurs in the nuclei of cells undergoing the type of cell division called meiosis.It occurs during prophase I (i.e. prophase of the first meiotic division). Prophase I is subdivided into five stages, and synapsis occurs in the second of these (zygotene).Synapsis refers to the pairing of homologous chromosomes. For example, the chromosome 5 that you inherited from your mother pairs with the chromosome 5 that you inherited from your Dad. By "pairing" is meant the exact alignment of two chromosomes, so that each point (locus) on one chromosome is beside the corresponding point on the other.It does not only occur during meiosis. Some flies, including the intensively-studied fruit-fly Drosophila, can undergo endomitosis, which is the division of chromosomes without subsequent cytokinesis (splitting of the cytoplasm).The result? A considerable replication of chromosomal material within a single cell. A famous example is the giant (polytene) chromosomes of the salivary glands of Drosophila. In these giant chromosomes the genetic material is aligned, so this is another example of synapsis.
What is another term for resting phase in the early prophase?
Early prophase
In which phase do chromosomes become visible?
The DNA of a cell condenses to form chromosomes during cell division or mitotis, called the M phase of the cell cycle. Specifically, chromosomes acquire their characteristic X shape in the metaphase stage of mitotis. Each chromosome consists of two sister chromatids joined at the centromere.
What is the stage of cell division?
Cells constantly go through mitosis/meiosis. In mitosis there are 4 steps, Prophase, Metaphase, Anaphase, and Telophase. After the cell completes all four steps it will go into Interphase, which sets up for another mitosis cycle. Interphase takes about 30-45 minutes.
What happens when nondisjunction takes place in cell division?
One cell is left without a particular chromosome and another with a duplicated chromosome.Source: An answer on wiki.answers.com that has been modified (by me).
What is difference between chromosome and chromatids?
A chromatid is one-half of two identical copies of a replicated chromosome. During cell division, the identical copies are joined together at the region of the chromosome called the centromere. They are known as sister chromatids. Once the paired sister chromatids separate from one another in anaphase of mitosis, each is known as a daughter chromosome. [source: About.com/Biology, see link below]
What can one half of a duplicated chromosome be referred as?
A chromatid is one-half of two identical copies of a replicated chromosome. During cell division, the identical copies are joined together at the region of the chromosome called the centromere.Joined chromatids are known as sister chromatids. Once the joined sister chromatids separate from one another in anaphase of mitosis, each is known as a daughter chromosome.Chromatids are formed from chromatin fibers.Bailey, Regina. "Chromatid." ThoughtCo, Apr. 17, 2017.
How do you see mutation in a karyotype?
You might see an extra chromosome or a missing chromosome. You might see a piece of a chromosome missing, or a piece added onto another chromosome.
What happens in prophase of mitosis?
In prophase chromatin condenses, spindle fibers form a bridge from one end of the cell to another, and the nuclear membrane starts to break down.
