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* Most of the cortico-spinal fibers (about 90%) cross over to the contralateral side in the http://www.answers.com/topic/medulla-oblongata (http://www.answers.com/topic/decussation-of-the-pyramids). Those that cross in the medulla oblongata travel in the http://www.answers.com/topic/lateral-corticospinal-tract. * The remainder of them (10%) cross over at the level that they exit the http://www.answers.com/topic/spinal-cord, and these travel in the http://www.answers.com/topic/anterior-corticospinal-tract. Most of the cortico-spinal fibers (about 90%) cross over to the contralateral side in the medulla oblongata (pyramidal decussation). Those that cross in the medulla oblongata travel in the lateral corticospinal tract. The remainder of them (10%) cross over at the level that they exit the spinal cord, and these travel in the anterior corticospinal tract.
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When does crossing over occur in meiosis?
Crossing over occurs during Prophase I.
When does crossing over occur in this meiosis?
Crossing over occurs during synapsis, prophase I.
In which phase will crossing-over occur?
Crossing over occurs during Prophase I of meiosis.
Synapsis and crossing over occur during?
prophase I
During which process does crossing-over occur?
crossing over occurs in meiosis I, specifically during prophase
When does crossing over occur in meiosis?
Crossing over occurs during Prophase I.
When does crossing over occur in this meiosis?
Crossing over occurs during synapsis, prophase I.
When do stages of meiosis recombination or crossing over occur?
Crossing over occurs during Prophase I.
In which phase will crossing-over occur?
Crossing over occurs during Prophase I of meiosis.
Synapsis and crossing over occur during?
prophase I
Pairing of homologues and crossing over occur during?
prophase I
What phase does meiosis crossing over occur?
prophase 1.
How does crossing over incrase phenotypicvariation in a population?
crossing over allows new genes to be made by the crossing over itself or by mutations that occur in the genes as crossing over occurs. since the phenotype is the physical appearance of the gene, the crossing over can change the genotype which can change the phenotype.
During which process does crossing-over occur?
crossing over occurs in meiosis I, specifically during prophase
When does crossing over occur im meiosis?
it takes place in the metaphase
When does crossing over occur for oogenesis?
prophase I, exactly in pachytene the synaptonemal complex is formed between the thickened chromosomes and recombination or crossing over occurs.
Does recombination only occur through single crossing over events?
Yes
