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6 results for “tetrad”
Text-fig. 13. Scanning electron microscope (SEM) images of pollen or spore clump with pollen grains or spores of unknown affinity that occur separately or adhering together in dyads, triads and tetrads; Torres Vedras locality, Portugal. a) Clump of pollen or spores that yielded the pollen or spores in this Text-figure; b–f) Grains adhering together in twos, threes or fours (b–e) or occurring singly and apparently with a proximal trilete mark (f); note that the adhering grains are connected by a smooth bandlike covering, perhaps remains of the microspore mother cell; note also abundant orbicules of various sizes among and over the grains. Specimen, TV44-S148149. Scale bars 300 Μm (a), 30 Μm (b–f). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 13. Scanning electron microscope (SEM) images of pollen or spore clump with pollen grains or spores of unknown affinity that occur separately or adhering together in dyads, triads and tetrads; Torres Vedras locality, Portugal. a) Clump of pollen or spores that yielded the pollen or spores in this Text-figure; b–f) Grains adhering together in twos, threes or fours (b–e) or occurring singly and apparently with a proximal trilete mark (f); note that the adhering grains are connected by a smooth bandlike covering, perhaps remains of the microspore mother cell; note also abundant orbicules of various sizes among and over the grains. Specimen, TV44-S148149. Scale bars 300 Μm (a), 30 Μm (b–f).
FIGURE 5. Anthoceros subtilis Steph. A. Capsule epidermis with thin walls and stomata. B. SEM micrograph showing sporophyte fragment with tetrads and pseudoelaters. C in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 5. Anthoceros subtilis Steph. A. Capsule epidermis with thin walls and stomata. B. SEM micrograph showing sporophyte fragment with tetrads and pseudoelaters. C. Pseudoelaters with thin-walls and irregular thickenings. D. SEM micrograph showing proximal face of spore which is spinulose and has distinct trilete mark. E. SEM micrograph showing distal spore face which is papillate to spinulose with spines often united at the base. All from R.-H. Dai PX95106 (GACP). Scale bars: A, C=50 µm; B, D, E=10 µm.
Basket-type G-Quadruplex with Two Tetrads in the Presence of TMAO and Urea: A Molecular Dynamics Study
<p>Molecular Dynamics simulation trajectories of basket-type DNA G-quadruplex (PDB: 2KF7). The structures have been simulated in the temperatures 300 K and 360 K in pure water, 1 M TMAO solution, 2 M urea solution and the mixture of 1 M TMAO and 2 M urea.</p> <p> </p>
The Tetrad BMI, Leptin, Leptin/Adiponectin (L/A) Ratio and CA-15-3 is a Reliable Biomarker of Breast Cancer
ClinicalTrials.gov study NCT01643148. IPD Sharing: Not stated. Countries: 0. Publications: 1.
Male Sterility in Maize after Transient Heat Stress during the Tetrad Stage of Pollen Development
GEO Series GSE132620. Zea mays. 6 samples. Type: Expression profiling by high throughput sequencing.
RNA-Seq analysis of wild-type and dmd1 anthers at tetrad stage
GEO Series GSE149191. Oryza sativa. 6 samples. Type: Expression profiling by high throughput sequencing.
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