Results 1 to 10 of about 170,575 (305)
Hoya pyrifolia (Apocynaceae), a new species from south-western Yunnan, China [PDF]
PhytoKeys, 2021 Hoya pyrifolia, a new species of Apocynaceae from Yunnan Province, China, is described and illustrated. Results from phylogenetic analyses, based on combined DNA fragments of the nuclear ribosomal external transcribed spacer (ETS), intergeneric ...
Er-Feng Huang +6 more
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Acta Biochimica et Biophysica Sinica, 2022 Apurinic/apyrimidic (AP) sites are severe DNA damages and strongly block DNA extension by major DNA polymerases. Y-family DNA polymerases possess a strong ability to bypass AP sites and continue the DNA synthesis reaction, which is called translesion ...
Wang Weiwei +7 more
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Molecular barcode and morphological analysis of Smilax purhampuy Ruiz, Ecuador [PDF]
PeerJ, 2021 Smilax plants are distributed in tropical, subtropical, and temperate regions in both hemispheres of the world. They are used extensively in traditional medicines in a number of countries. However, morphological and molecular barcodes analysis, which may
Pilar Soledispa +5 more
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Scientific Reports, 2021 Transcription, the first step to gene expression, is a central coordination process in all living matter. Besides a plethora of regulatory mechanisms, the promoter architecture sets the foundation of expression strength, timing and the potential for ...
Carlo A. Klein +3 more
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Intragenic DNA spacers interrupt the ovalbumin gene [PDF]
Proceedings of the National Academy of Sciences, 1978 We have performed restriction endonuclease mapping to examine the linear organization of the ovalbumin gene in chromosomal DNA. Treatment of genomic DNA with restriction endonucleases that do not cleave the ovalbumin mRNA sequence results in the generation of multiple DNA fragments capable of annealing with ovalbumin-specific probes in molecular ...
R, Weinstock +4 more
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Organization of spacer DNA in chromatin. [PDF]
Proceedings of the National Academy of Sciences, 1979 Detailed analysis of the DNA fragment patterns produced by DNase I digestion of yeast, HeLa, and chicken erythrocyte nuclei reveals surprising features of nucleosome phasing. First, the spacer regions in phased yeast chromatin must be of lengths (10m + 5) base pairs, where m = 0, 1, 2,....This feature is not seen in parallel studies of chicken ...
D, Lohr, K E, Van Holde
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Hayati Journal of Biosciences, 2012 Tempe fermentation involved complex microbial communities which are only revealed partially through culture dependent methods. Culture-independent methods would be potential to unravel this complex microbial fermentation. Appropriate DNA extraction is an
CECILIA ANNA SEUMAHU +3 more
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Assessment of four molecular markers as potential DNA barcodes for red algae Kappaphycus Doty and Eucheuma J. Agardh (Solieriaceae, Rhodophyta). [PDF]
PLoS ONE, 2012 DNA barcoding has been a major advancement in the field of taxonomy, seeing much effort put into the barcoding of wide taxa of organisms, macro and microalgae included.
Ji Tan +5 more
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Traditional and molecular diagnosis of Haemonchus contortus in sheep in Babylon province, Iraq [PDF]
Iraqi Journal of Veterinary Sciences, 2022 Haemonchus contortus one of gastrointestinal helminthes characterized by miner intraspecific variation and a major variation among species which exploited to determine species simultaneously depend on PCR techniques, by amplification of DNA from ...
Balkes F. Hade +2 more
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Structure of the intergenic spacers in chicken ribosomal DNA [PDF]
Genetics Selection Evolution, 2019 Abstract Background Ribosomal DNA (rDNA) repeats are situated in the nucleolus organizer regions (NOR) of chromosomes and transcribed into rRNA for ribosome biogenesis. Thus, they are an essential component of eukaryotic genomes.
Dyomin, Alexander +10 more
openaire +6 more sources