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it is the part on the homologous chromosome that holds the two together once they have crossed over. the point where two homologous non-sister chromatids exchange genetic material during chromosomal crossover during meiosis

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12y ago
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6mo ago

A chiasmata is a structure formed during meiosis where chromatids cross over and exchange genetic material, leading to genetic variation between homologous chromosomes. It is important for genetic diversity and contributes to the reshuffling of genes.

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13y ago

Crossing over:is a process of (breakage) and (exchange) of parts between two homologous chromatids .Each bivalent (a pair of same chromosomes ) is called a tetrad . Along the length of each bivalent one or more X shaped connections between (non-sister chromatids ) are found ;these CHIASMATA are places where crossing overs have occurred .

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13y ago

Prophase I

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Q: What is a chiasmata?
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Related questions

X shaped regions created when chromosomes crossover are called?

When chromosomes crossover the x shaped region created is called a chiasmata. These chiasmatas allow chromosomes to exchange of genetic materials.


During what event of meiosis will chiasmata be observed?

Chiasmata are observed during the prophase I of meiosis. Chiasmata are the physical manifestation of crossing over between homologous chromosomes, where genetic material is exchanged between chromatids.


Chiasmata form between.?

Sister chromatids


How does chiasmata contribute to genetic variation?

Jh


What is the difference between Chiasma and Chiasmata?

Chiasma refers to the physical site of crossover between homologous chromosomes during meiosis, facilitating genetic recombination. Chiasmata are the visible manifestations of chiasmata, appearing as X-shaped structures that hold homologous chromosomes together before they separate during meiosis.


Crossing over points are called?

Chiasmata.


X-shaped regions created when chromosomes crossover are called?

chiasmata


What holds doubled chromosomes?

Formation of chiasmata during crossing over


Does chiasmata occur in mitosis?

No, chiasmata do not occur in mitosis. Chiasmata are structures that form during meiosis, specifically during prophase I, as a result of crossing over between homologous chromosomes. Mitosis does not involve homologous chromosomes pairing up and exchanging genetic material like in meiosis.


What term belongs with synapsis tetrads and chiasmata?

Meiosis. These terms are all related to the process of meiosis, specifically in the context of prophase I where synapsis, tetrads, and chiasmata play a role in genetic recombination and crossing over.


What is crossing over points called?

Crossing over points are called chiasmata. Chiasmata are the sites where genetic material is exchanged between homologous chromosomes during meiosis. This process is crucial for genetic diversity and the recombination of genetic information.


What are crossing over points called?

Crossing over points are called chiasmata. Chiasmata are the physical points where homologous chromosomes exchange genetic material during meiosis. This process contributes to genetic diversity by creating new combinations of alleles.