Results 131 to 140 of about 3,374,874 (275)

Avanços da biologia molecular. [PDF]

, 2009
É o estudo da biologia em nível de moléculas, com especial foco no estudo das estrutura e função dos genes, e dos seus produtos, as proteínas. A biologia molecular também investiga as interações entre os diversos sistemas celulares e desse complexo de ...
GIMENES, M. A., BERTIOLI, S. C. de M. L.
core  

Volatile Compounds in Feathers of the Scarlet Macaw (Ara macao) Reflect Sex and Pair‐Bond Status

Integrative Zoology, EarlyView.
Scarlet macaws exhibit sex‐ and pair‐related differences in plumage volatile composition, with males showing greater chemical richness. Partnered individuals differ in specific compound classes, whereas no clear association with immune function was detected. These results support a potential role for olfactory cues in sexual and social communication in
Elisa Espartosa, Isabel Barja, José Martin, María del Carmen Hernández   +3 more
wiley   +1 more source

A REVOLUÇÃO DA BIOLOGIA MOLECULAR NA MEDICINA

Revista de Ciências da Saúde Nova Esperança, 2006
A genética moderna busca desvendar a base molecular dos processos que geram uma doença genética, e melhorar os métodos de diagnóstico e tratamento. Estas descobertas têm contribuído para o desenvolvimento de técnicas que possibilitem uma análise detalhada dos genes.
openaire   +1 more source

Metabarcoding replicate detection frequency tracks ddPCR copy number for cod and herring eDNA in ancient marine sediments

Methods in Ecology and Evolution, EarlyView.
Abstract Detecting environmental DNA (eDNA) from rare or low‐abundance aquatic species remains a major challenge, particularly when it is highly degraded, present at low concentrations, and dominated by DNA from non‐target taxa. These challenges are further amplified in sedimentary ancient DNA (sedaDNA) studies, where thousands of years can degrade ...
Elena Baños, Steen Wilhelm Knudsen, Kristine Bohmann, Luke E. Holman   +3 more
wiley   +1 more source

Microbiome Dynamics During Translocation of the Critically Endangered Frog Craugastor ranoides

Animal Conservation, EarlyView.
A female Craugastor ranoides fitted with an LB‐2X radio transmitter using a silicone waist‐belt harness for post‐translocation monitoring. ABSTRACT Amphibian populations are declining, and species are going extinct due to habitat loss, climate change, and emerging infectious disease, prompting the increasing use of translocations as a conservation tool.
Xavier A. Harrison, Katherine Herborn, Gilbert Alvarado, María Marta Chavarría, Kirsty J. Marsh, Alexander D.M. Wilson, Alexandra C. North, Victoria E. P. Wakeham, Roberto Fernández, Héctor Zumbado‐Ulate, Jon Bielby, Robert Puschendorf   +11 more
wiley   +1 more source

BIOLOGIA MOLECULAR NO DESENVOLVIMENTO DE FÁRMACOS [PDF]

, 2019
Tarcísio Silva Borges, Elizaine Fernandes da Silva, Aroldo Vieira de Moraes Filho   +2 more
openaire   +1 more source

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source

Unravelling the phylogeny of armadillos and their kin (Mammalia, Xenarthra, Cingulata) combining morphological, molecular, and stratigraphic data

Cladistics, EarlyView.
Abstract Cingulata, a major lineage of Xenarthra, comprises extinct and extant armoured placental mammals that diversified throughout the Cenozoic. Despite extensive study, phylogenetic hypotheses based on morphological and molecular data remain incongruent, and no total evidence analysis has been conducted. Here, we integrate the largest morphological
Daniel M. Casali, Mariela C. Castro, Martin R. Ciancio, Timothy J. Gaudin, Jeremy L. Bramblett, Alberto Boscaini, Fernando A. Perini, Max C. Langer   +7 more
wiley   +1 more source

Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods

Conservation Biology, EarlyView.
Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes, José Alexandre F. Diniz‐Filho, André V. L. Freitas, Mario R. Moura   +3 more
wiley   +1 more source

Biologia molecular do câncer cervical Molecular biology of cervical cancer

Revista Brasileira de Saúde Materno Infantil, 2006
A carcinogênese é um processo de múltiplas etapas. Alterações no equilíbrio citogenético ocorrem na transformação do epitélio normal a câncer cervical. Numerosos estudos apoiam a hipótese de que a infecção por HPV está associada com o desenvolvimento de alterações malignas e pré-malignas do trato genital inferior.
Waldemar Augusto Rivoire, Helena Von Eye Corleta, Ilma Simoni Brum, Edison Capp   +3 more
openaire   +1 more source