Synapsis

synapsis
temporary conjunction of the pairs of homologous chromosomes (from male and female parent) previous to the maturation of germ cells, association or union ...
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Pairing of homologous sequences results in synapsis of homologous chromosomes, but synapsis does not require homology.
Facts ...
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Synapsis (joining) of homologous chromosomes produces tetrads (also called bivalents).
The two chromosomes may exchange fragments by a process called crossing over.
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Synapsis. The synaptonemal complex begins to form.
DNA strands of nonsister chromatids begin the process of recombination. How they are able to do so across the synaptonemal complex, which is over 100 nm thick, is unknown.
3. Pachytene ...
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Synapsis
The pairing of homologous chromosomes or of homologous chromosomal regions.
Synteny
Genes which occur in the same order on the chromosome of different species.
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synapsis The alignment of chromosomes during meiosis I so that each chromosome is beside its homologue.
synaptic cleft The space between the end of a neuron and an adjacent cell.PICTURE ...
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synapsis
The pairing of replicated homologous chromosomes during prophase I of meiosis.
synaptic cleft ...
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synapsis The pairing of homologous chromosomes that occurs in Prophase I of meiosis.
synaptic cleft The narrow space between the terminal ending of a neuron and the receptor site of the postsynaptic cell.
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= Synapsis. The conjugation or fusion of homologous chromosomesduring prophase of the first meiotic division, when crossing over occurs. Normally syndesis starts at the telomeres and passes on to the centromeres like a zipper.
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The zygotene stage sees the completion of synapsis. The combined homologous chromosomes are said to be bivalent, a reference to the two homologous chromosomes. They may also be referred to as a tetrad, a reference to the four sister chromatids.
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A giant chromosome produced by an endomitotic process in which, following synapsis of the two homologues, multiple rounds of replication produce chromatids that remain synapsed together in a haploid number of chromosomes.
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The pairing process, known as synapsis , may begin at several points along the structures and then "zip up". The paired homologous chromosomes, now known as bivalents, shorten and thicken by means of molecular packaging as well as coiling.
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crossing over
the reciprocal exchange of genetic material between non-sister chromatids during synapsis of meiosis I.
Crustacea
class in the phylum Arthropoda. Most members of this class are aquatic, although a few are terrestrial.
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[Gr. zygotos - yoked together; Gr. tainia - ribbon]. The second stage in prophase 1 of meiosis, characterized by the synapsis, or pairing, of homologous chromosomes to form a bivalent.
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Synapsis. The pairing of homologous chromosome pairs during prophase of the first meiotic division, when crossing over occurs. T Taq polymerase. A heat-stable DNA polymerase isolated from the bacterium Therrnus aquaticus, used in PCR.
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