Browsing Biology by Title
Now showing items 115-134 of 355
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Developmental Patterns of Cleistogamy and Chasmogamy in Triodanis perfoliata
(2015-05)Some plants exhibit mixed mating, in which individual plants utilize both cross and self-fertilization. Dimorphic cleistogamy is one form of mixed mating. In plants that display dimorphic cleistogamy, both chasmogamous ... -
The dicer-like1 Homolog fuzzy tassel Is Required for the Regulation of Meristem Determinacy in the Inflorescence and Vegetative Growth in Maize
(2014-12)Plant architecture is determined by meristems that initiate leaves during vegetative development and flowers during reproductive development. Maize (Zea mays) inflorescences are patterned by a series of branching events, ... -
Did an ancient chlamydial endosymbiosis facilitate the establishment of primary plastids?
(East Carolina University, 2007-06)Background: Ancient endosymbioses are responsible for the origins of mitochondria and plastids, and they contribute to the divergence of several major eukaryotic groups. Although chlamydiae, a group of obligate intracellular ... -
Differential gene expression and alternative splicing in insect immune specificity
(2014-11)Background Ecological studies routinely show genotype-genotype interactions between insects and their parasites. The mechanisms behind these interactions are not clearly understood. Using the bumblebee Bombus terrestris ... -
Digits Lost or Gained? Evidence for Pedal Evolution in the Dwarf Salamander Complex ( Plethodontidae)
(2012)Change in digit number, particularly digit loss, has occurred repeatedly over the evolutionary history of tetrapods. Although digit loss has been documented among distantly related species of salamanders, it is relatively ... -
DISINTEGRIN-LIKE DOMAIN IN KSHV ENCODED gB IS A NECESSITY TO PROMOTE VIRUS LATENCY
(East Carolina University, 2011)KSHV glycoprotein B (gB) is a lytic structural protein expressed on the envelope of mature virions and on the membrane of cells supporting lytic infection. Previous studies have identified that in addition to the role of ... -
Distribution Patterns of Juvenile Spotted Seatrout (Cynoscion nebulosus) and Red Drum (Sciaenops ocellatus) Along Shallow Beach Habitats in Pamlico River, North Carolina
(East Carolina University, 2012)The association of juvenile spotted seatrout (Cynoscion nebulosus) and red drum (Sciaenops ocellatus) with Submerged Aquatic Vegetation (SAV) is well documented. However, their association with other estuarine habitats ... -
Dodge, Duck, Dip, Dive & Dependence: Using Dodgeball to Explore Frequency Dependent Selection
(2016-09)The term frequency dependence describes scenarios in which the likelihood of an event occurring is strongly tied to how common a particular trait is. Understanding frequency dependence is key to understanding ... -
Does history matter? : An experimental assessment of whether dragonfly colonization history affects insect biodiversity within ephemeral ponds
(East Carolina University, 2010)Current interactions among species could have an important role in controlling biodiversity. Some studies, however, have shown that the particular time a species arrives at a site during the process of community assembly ... -
DOES THE QUANTITY OF RESOURCES IN THE ENVIRONMENT ALTER THE IMPACT OF MULTIPLE PREDATORS ON THEIR PREY?
(East Carolina University, 2013)Predation is an important biological process affecting prey populations and most prey in nature are exposed to multiple predator species. Much research has revealed that the combined effect of multiple predators on their ... -
A dominant allele controls development into female mimic male and diminutive female ruffs
(2013-12)Maintaining polymorphisms for genes with effects of ecological significance may involve conflicting selection in males and females. We present data from a captive population of ruffs (Philomachus pugnax) showing that a ... -
Drosophila Ctf4 is essential for efficient DNA replication and normal cell cycle progression
(2011)Background Proper coordination of the functions at the DNA replication fork is vital to the normal functioning of a cell. Specifically the precise coordination of helicase and polymerase activity is crucial for efficient ... -
Drosophila Ctf4 is essential for genome stability and normal cell cycle progression
(East Carolina University, 2010)Proper DNA replication and well-timed cell cycle progression are vital to the normal functioning of a cell. Precise coordination between these mechanisms' constituent proteins ensures their processivity while safeguarding ... -
Drosophila Oocytes as a Model for Understanding Meiosis: An Educational Primer to Accompany “Corolla Is a Novel Protein That Contributes to the Architecture of the Synaptonemal Complex of Drosophila”
(2015-01)Achieving a thorough understanding of the events and ramifications of meiosis is a common learning objective for undergraduate introductory biology, genetics, and cell biology courses. Meiosis is also one of the most ... -
Drosophila Psf2 Has a Role In Chromosome Condensation
(East Carolina University, 2012)The condensation state of chromosomes is a critical parameter in multiple processes within the cell. Failures in the maintenance of appropriate condensation states may lead to genomic instability, mis-expression of genes, ... -
Duodenal carcinoma at the ligament of Treitz. A molecular and clinical perspective
(2010)Background There is very small occurrence of adenocarcinoma in the small bowel. We present a case of primary duodenal adenocarcinoma and discuss the findings of the case diagnostic modalities, current knowledge on the ... -
Early Nicotine Exposure Altered Larval Neuromuscular Function and Adult Germline Apoptosis via MiRNA-Dependent Mechanisms
(East Carolina University, 2016-04-29)MicroRNAs fine tune the expression of target genes needed for homeostasis. Our pilot study showed that nicotine altered 17% miRNAs in C. elegans larvae. Here, we investigated the role of microRNAs in mediating nicotine-induced ... -
Ecological effects of rising sea level on shorezone
(East Carolina University, 2009)This study examines the ecological effects of sea-level rise on shorezone in the Neuse River estuary and western Pamlico Sound, NC. Shorezone is defined here in an ecohydrological context as the area of wetland that extends ... -
Educational engagement and the environment: Investigating service learning in the nonhuman sciences
(2014)Classic definitions outline service learning as engaging students in experiential education where learning goals are reached when service activities are combined with reflective assignments. In an effort to integrate ... -
THE EFFECT OF CHANGES IN SODIUM CONCENTRATIONS ON MITOCHONDRIA
(2015-05-01)Atherosclerosis, hardening of the arteries, is the major cause of stroke, peripheral artery disease and heart attack. . Overproduction of superoxide anions in mitochondria can give rise to atherosclerosis. Superoxide anions ...