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How is a linkage map related to cross overs that take place during meiosis?
Wiki User
∙ 12y ago
The more space there is between two genes on the same chromosome, the more likely it is that crossing over will take place between those two genes. Thus, by studying lots of examples of
meiosis
with crossing over, it is possible to make a map of the chromosome, with the genes (and the relative distances between them) laid out along it.
Wiki User
∙ 12y ago
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Do crossovers usually occur during mitosis?
No, cross-overs generally happen during Meiosis I, although it is possible for a cross-over to occur during mitosis.
Why is it necessary for homologous to pair during meiosis and not desirable for them to pair in mitosis?
to cross over which results in the genetic recombination
What is the result of a mutation during meiosis?
The offspring of the organism will have the mutation. -Apex
What phase of meiosis do nonsister chromatids cross over?
Nonsister Chromatids Cross-over in Prophase 1
How does meiosis contribute to genetic variation?
By recombining the genetic material in two ways with a third way furthering variation. 1. The independent orientation of the chromosomes during prophase I of meiosis. 2. Crossing over between chromosomes in prophase I of meiosis. 3. Random fertilization of gametes.
How are crossing over and recombination related?
Genetic recombination occurs during meiosis cell division. As genes cross over during this process, scientists track the genes to study their linkage.
How are cross over frequencies related to linkage map?
Because linkage maps are inherited by the cross over frequencies
How is linkage map related to cross overs that take place during meiosis?
The more space there is between two genes on the same chromosome, the more likely it is that crossing over will take place between those two genes. Thus, by studying lots of examples of meiosis with crossing over, it is possible to make a map of the chromosome, with the genes (and the relative distances between them) laid out along it.
How is a linkage related to a cross-overs that take place during meiosis?
The more space there is between two genes on the same chromosome, the more likely it is that crossing over will take place between those two genes. Thus, by studying lots of examples of meiosis with crossing over, it is possible to make a map of the chromosome, with the genes (and the relative distances between them) laid out along it.
What hypothesis was the basis of Sturtevant research?
Sturtevant's hypothesis was that the frequency of cross-overs during meiosis was related to the distance between genes
Do crossovers usually occur during mitosis?
No, cross-overs generally happen during Meiosis I, although it is possible for a cross-over to occur during mitosis.
Could crossing over occur during second meiotic division?
No, tips of homologous chromosomes cross over in Meiosis I. There are no homologous chromosomes by Meiosis I.
How are linkage maps relate to cross overs?
Because linkage maps are inherited by the cross over frequencies
Do the X and Y chromosomes cross over at male meiosis?
No, X and Y chromosomes don't cross over during male meiosis. Otherwise there would be risk of male specific genes occurring in XX individuals.
Why is it necessary for homologous to pair during meiosis and not desirable for them to pair in mitosis?
to cross over which results in the genetic recombination
In what two ways does meiosis provide genetic variation?
The two sources of genetic variation in a cell during Meiosis are crossing-over during synapse and independent assortment.
What is the result of a mutation during meiosis?
The offspring of the organism will have the mutation. -Apex
