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During which stage of meiosis are the bivalents arranged along the equator?
Wiki User
∙ 9y ago
During the metaphase I meiosis are the bivalents are arranged along the equator. During the prophase I of meiosis I the crossing over occurs.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoMetaphase I
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What happens during metaphase in the cell division?
Metaphase is the phase of cell division where chromosomes line up on the equator of the cell just prior to splitting to the poles at anaphase. During mitosis identical chromosomes pair up on the equator, wheras during meiosis the homologous pairs line up together during meiosis 1 and then homologous chromatids line up together in meiosis 2.
Crossing over occurs during which phase of meiosis?
Crossing over occurs during Prophase I of meiosis.
How is meiosis related to genes?
Meiosis allows a cell to form into 4 cells (by meiosis 1 (which is literally mitosis) and meiosis 2 (mitosis without DNA replication)) in meiosis 1, the cells exchanges DNA information between homologous pairs, this allows genes to be transferred and creates 4 unique and distinct cells. segragation of alleles occur too.
Experiments with cohesion have found that?
cohesions are protected from cleavage at the centromere during meiosis I.
What happens during meiosis that ultimately results in a defect characterized by the deletion of chromosomes?
Nondisjunction occurs in too many cells or too few cells causing defects
Chromatids line up along the equator?
The chromatids line up at the equator of the cell during the metaphase of meiosis. After which the chromatids separate to form individual chromosomes.
What happens after meiosis to introduce even more genetic variation in sexualy reproducing organisms?
Genetic variation is increased by meiosis Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase
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.
When a child has Trisomy when does the mutation occur?
during meiosis
What happens to the tetrads in telophase?
During metaphase I of meiosis, tetrads line up along the equator of the cell. They are preparing for separation in the next phase.
If a child is born with down syndrome when did the mutation occur?
During meiosis
Random alignment of chromosomes contribute to genetic variation?
Random alignment of chromosomes occurs during Metaphase I in a cells meiosis. Random alignment is when the homologous pairs of chromosomes line up at the equator or middle of the cell, and are arranged by which member faces what pole. This allows equal opportunity for the chromosomes to migrate to a different cell.
In a human the 46 chromosomes would be at the equator during?
There won't be more than 23 Chromosomes at any stage unless the individual has a genetic disorder. They align in metaphase during mitosis and meiosis.
Recombination occurs during?
meiosis
Why are there two sets of phases during meiosis but only one during meiosis?
burr
How many daughter cell are produced when chromosomes undergo meiosis?
A total of four daughter cells are created during meiosis. There are two phases of meiosis, meiosis 1 and meiosis 2. During meiosis 1 two daughter cells are created while during meiosis 2 four daughter cells are created.
What stage of of meiosis do homologous pairs separate?
Reduction Division
