Browsing Biology by Title
Now showing items 116-135 of 1310
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ANDROGEN AND PROGESTERONE RECEPTORS KNOCKOUTS IN ZEBRAFISH AFFECT AGGRESSION AND SOCIAL DOMINANCE
(East Carolina University, 2019-05-03)ABSTRACT - There is circumstantial evidence that steroids, such as androgens and progesterone, play roles in aggression and social behaviors in vertebrates. However, the genetic basis for these behaviors needs to be further ... -
Anti-Cancer Activity of Cucurbitacin IIa
(East Carolina University, 2012)Cancer is a debilitating disease resulting from uncontrolled proliferation. One major treatment strategy for cancer is the application of chemotherapeutic drugs which kill cancer cells. Cucurbitacins are a new family ... -
The AraC-Like Transcriptional Regulator DhbR Is Required for Maximum Expression of the 2,3-Dihydroxybenzoic Acid Biosynthesis Genes in Brucella abortus 2308 in Response to Iron Deprivation
(East Carolina University, 2008-03)Phenotypic evaluation of isogenic mutants derived from Brucella abortus 2308 indicates that the AlcR homolog DhbR (2,3-dihydroxybenzoic acid [2,3-DHBA] biosynthesis regulator) modulates the expression of the genes involved ... -
Are algal genes in nonphotosynthetic protists evidence of historical plastid endosymbioses?
(East Carolina University, 2009)Background: How photosynthetic organelles, or plastids, were acquired by diverse eukaryotes is among the most hotly debated topics in broad scale eukaryotic evolution. The history of plastid endosymbioses commonly is ... -
ARE ALL FISH NURSERIES EQUAL? DETERMINING HOW FOOD WEB DYNAMICS AFFECT FISH NURSERY HABITAT
(East Carolina University, 2018-07-23)The fish nursery habitat concept has been used to define important habitat for larval and juvenile fish throughout coastal and estuarine areas. Nursery habitat has been defined as an area that produces more fish biomass, ... -
Are All Parasitic Infections Created Equal? An Examination of Differential Infection Effects and Responses in Native and Non-Native Hosts
(East Carolina University, 2018-12-10)Interactions between native and introduced species are complex, multifaceted, and can have cascading effects throughout an ecosystem. While scientists have taken great strides to understand how these dynamics change with ... -
Are Marine Migrations of Striped Bass Genetically Pre-determined? : An investigation of Albemarle Sound-Roanoke River Striped Bass Migratory Patterns
(East Carolina University, 2010)Striped bass, Morone saxatilis, is one of the most thoroughly studied anadromous fish species in the United States, with records governing the management of the species dating back to the late 1600s. However, management ... -
Arthropod Phylogenetics in Light of Three Novel Millipede (Myriapoda: Diplopoda) Mitochondrial Genomes with Comments on the Appropriateness of Mitochondrial Genome Sequence Data for Inferring Deep Level Relationships
(2013)Background Arthropods are the most diverse group of eukaryotic organisms, but their phylogenetic relationships are poorly understood. Herein, we describe three mitochondrial genomes representing orders of millipedes for ... -
Assaying Environmental Nickel Toxicity Using Model Nematodes
(2013)Although nickel exposure results in allergic reactions, respiratory conditions, and cancer in humans and rodents, the ramifications of excess nickel in the environment for animal and human health remain largely undescribed. ... -
Assessing cellular and genomic damage from environmental nickel using a GFP containing strain of Caenorhabditis elegans
(East Carolina University, 2013)Nickel is a naturally found mineral that has become widely used for many electronic devices. As use and subsequent discarding of nickel containing products continues exposure to nickel increases. Nickel can cause external ... -
Assessing Morphological Variability in Silversides along the Mid-Atlantic Bight
(2015)Inland silversides (Menidia beryllina) and Atlantic silversides (Menidia menidia) are ubiquitous fishes in the estuaries on the east coast of the United States. These species are very similar in appearance and may share ... -
Assessing The Monophyly Of Red Algae And Green Plants Via Core Conserved Informational Genes
(East Carolina University, 2015)For well over a century the existence of a monophyletic relationship between red algae and green plants has been debated. Many scholars have sought to address this issue, however, a consistent solution to the problem has ... -
ASSESSMENT OF NICHE PARTITIONING IN CO-OCCURRING SILVERSIDES FROM THE ALBEMARLE AND PAMLICO SOUNDS OF NORTH CAROLINA
(2015-05-01)The niche partitioning hypothesis predicts that two species cannot compete for the same limited resources and that one species should differentiate (genetically, morphologically or behaviorally), so that the two species ... -
An assessment of the polytypic status of the Namib darkling beetles Onymacris unguicularis and Onymacris rugatipennis
(2014)The southern African beetle genus Onymacris (family Tenebrionidae) comprises 14 species, six of which are polytypic. Despite longstanding research on the physiological and behavioral adaptations of these desert beetles, ... -
An assessment of the polytypic status of the Namib darkling beetles Onymacris unguicularis and Onymacris rugatipennis
(2014-12-10)The southern African beetle genus Onymacris (family Tenebrionidae) comprises 14 species, six of which are polytypic. Despite longstanding research on the physiological and behavioral adaptations of these desert beetles, ...