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Sister in Biological Dictionary

Sister Chromatids

... sister chromatids are identical copies of a chromosome connected by a centromere. Compare sister chromatids to homologous chromosomes, which are ... protein complex responsible for binding the sister chromatids during synthesis through the G2 phase ...

Sister chromatid

... sister chromatids are identical copies of a chromosome connected by a centromere. Compare sister chromatids to homologous chromosomes, which are ... so long as the centromeres remain ... The sister chromatid cohesion essential for the ...

Chromatid

... et al. 1999; ... Deletion of TRF4 results in a sister chromatid cohesion defect (Wang et al., 2000 ) ... We then assessed sister chromatid cohesion in strains carrying a deletion in ... Equal sister chromatid exchange is a major mechanism of ...

Centromere

... the middle of a chromosome where two identical sister chromatids come in contact. It is involved in ... and more. ... Search " Centromere " ... sister chromatids are identical copies of a chromosome ... Required. A centromere is the region where sister chromatids join in the double ... The ...

Plantae

... (later Plantae ) and Animalia. ... We also are very uncertain what the sister group of the Plantae might be. ... Discover Life - Plantae - ... phylogenetic definition. ... We also are very uncertain what the sister group of the Plantae might be. ... ...

RNA

... free online English dictionary and encyclopedia. ... RNA also differs from DNA in having the pyrimidine base uracil instead of ... RNA's sister Web sites. ReligionWriters.com. ReligionLink.com. ReligionHeadlines.org ... Why join RNA ? How to join or renew. E-Weekly News. Member search ... ...

Primitive streak

... remains. ... If the primitive streak does not take place, bodily organs will not start ... Primitive Streak was essentially a gift from my sister Kate, at a time when I ... A double award-winning project, Primitive Streak has toured in 7 countries since ... Primitive streak synonyms, ...

Polytene

... division (endomitosis), forming a giant polytene chromosome. Polytene chromosomes form when multiple rounds of replication produce many sister chromatids that ... most polytene (molecular biology) Having very large chromosomes with many strands ... Retrieved from ...

Nondisjunction

... separate properly during cell division. This could arise from a failure of homologous chromosomes to separate in meiosis I, or the failure of sister chromatids to separate during meiosis II or mitosis. The result of this error is a cell with an imbalance of chromosomes. When a single ...

MtDNA

... from food into ... This genetic material is known as mitochondrial DNA or mtDNA . ... mtDNA Haplogroups. Matrilineal line for the oldest sister of L. David Roper ... I have had my mtDNA tested (HVR1 low-resolution test) by ... mtDNA and Aging ... Argus BioSciences focuses in ...

Lampbrush

... Lampbrush chromosomes occur during the diplotene stage of meiosis I. Lampbrush chromosomes are meiotic bivalents, each consisting of 2 sister chromatids. Each halve-bivalent is represented by two long strands that form many ... lampbrush chromosome ( ) n. A large ...

Homologous recombination

... Recombination . Homologous recombination occurs between two homologous DNA molecules. ... During meiosis, two homologous pairs of sister chromatids ... ...

Daughter Chromosome

... as parent cell; in ... provides 2n possible combinations of chromosomes in daughter cells ... ... one copy, and only one copy, of each sister chromosome to a daughter cell. ... "Sister chromosomes ," "sister chromatids," "mother cells," " daughter cells," and " ... ... daughter ...

CpDNA

... to assess ... Phylogenetic analysis of the combined cpDNA data set ... Our cpDNA combined data analyses show strong support for P. amphibia as sister ... The cpDNA and mtDNA fragments were amplified using universal primers and ... The four cpDNA primer pairs and three mtDNA primer pairs ...

Cladogenesis

... forms a "clade", an evolutionary mechanism and a process of adaptive evolution that leads to the development of a greater variety of sister organisms. This event usually occurs when a few organisms end up in new, often distant areas or when environmental ... cladogenesis n. ...
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