Chiasma Definition & Meaning - Merriam-Webster
: a cross-shaped configuration of paired chromatids visible in the diplotene stage of meiotic prophase and considered the cytological equivalent of genetic crossing-over. New Latin, X-shaped configuration, from Greek, crosspiece, from chiazein to mark with a chi, from chi (x) 1839, in the meaning defined at sense 1. “Chiasma.”
Chiasmata- Definition, Formation, Structure, Significances
2023年8月3日 · Chiasmata (singular: chiasma, from the Greek, meaning “X-shaped cross”) is the point of contact that occurs in the Prophase I pachytene phase and links two non-sister chromatids belonging to homologous chromosomes together until …
In Genetics, what is a Chiasma? - AllTheScience
2024年5月21日 · A chiasma is a point of contact between sister chromatids that forms during meiosis, a process of cell division and replication used by a wide variety of organisms. At the chiasma, the chromatids can exchange genetic information, resulting in new combinations of genetic material.
Chiasma Definition and Examples - Biology Online Dictionary
2023年5月29日 · ChiasmaThe point of contact between paired chromatids during meiosis, resulting in a cross-shaped configuration and representing the cytological manifestation of crossing over like the letter X. You will also like... Mātauranga Māori is the living knowledge system of the indigenous people of New Zealand, including the relationships t..
Chiasma - (General Genetics) - Vocab, Definition, Explanations
Chiasma refers to the physical manifestation of crossing over between homologous chromosomes during meiosis, specifically in prophase I. This process is crucial for genetic diversity as it allows the exchange of genetic material between chromatids, resulting in new combinations of alleles.
CHIASMA | definition in the Cambridge English Dictionary
CHIASMA meaning: 1. an instance of two structures in the body crossing and forming an X, especially the optic…. Learn more.
What is chiasma in meiosis? - BYJU'S
Chiasma refers to structures formed between a pair of homologous chromosomes by cross recombination. It physically links homologous chromosomes during meiosis. In other words, Chiasma is the point of contact between two non-sister chromosomes belonging to the homologous chromosomes.
Chiasma | definition of chiasma by Medical dictionary
in genetics, the points at which members of a chromosome pair are in contact during the prophase of meiosis and because of which recombination, or crossing over, occurs on separation. See also chiasma formation.
Chiasma | Interactive Biology, with Leslie Samuel
/kīˈazmə/ Noun, pl. Chiasmata 1. (Genetics) Thought to be the point where two homologous non-sister chromatids exchange genetic material during chromosomal crossover during meiosis (sister chromatids also form chiasmata between each other, but because their genetic material is identical, it does not cause any change in the resulting daughter cells). (wikipedia.org) 2. A …
Chiasma - Vocab, Definition, and Must Know Facts | Fiveable
Chiasma refers to the point of crossover between homologous chromosomes during meiosis, specifically in prophase I. This genetic exchange is essential for creating genetic diversity, as it allows for the recombination of alleles between paired chromosomes, which leads to unique combinations of traits in offspring.
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