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Full-Text Articles in Biology

Internal Oral Anatomy: A Comparative Analysis Of The Phyllomedusinae (Anura:Hylidae), Erin B. Hines Jan 1997

Internal Oral Anatomy: A Comparative Analysis Of The Phyllomedusinae (Anura:Hylidae), Erin B. Hines

Honors Theses

The internal oral anatomy of phyllomedusines has only been described for Agalychnis callydrias using light microscopy. Herein, we compare the internal oral anatomy of the genera Phyllomedusa, Agalychnis, Pachymedusa, and Phasmahyla, using SEM methodology. Tadpoles of ten species were prepared using standard SEM techniques; these larvae ranged from Gosner stages 34-39. Phasmahyla has a unique prenarial arena with three well developed pre-narial arena papillae, whereas the other genera possess the prenarial arena papillae in a semicircular arrangement with the opening directed posteriorly. Pachymedusa differs from Phyllomedusa and Agalychnis by having a low, straight-edge, median ridge; also, its buccal floor arena …


Ubiquitin-Mediated Proteolysis During Gametogenis In Chlamydomonas Reinhardtii, Hall Thomas Mcgee Jan 1997

Ubiquitin-Mediated Proteolysis During Gametogenis In Chlamydomonas Reinhardtii, Hall Thomas Mcgee

Honors Theses

Scientists in the field of cell biology have focused considerable attention on a unicellular species of green algae known as Chlamydomonas reinhardtii. This organism is relatively common in bodies of fresh water and some types of soil, but most of the attention is due to its value as a model for biochemical studies. This laboratory has undertaken a broad study of the species including exploration into a special class of proteins, called heat shock proteins, and certain biochemical processes of the organism. The work herein described is a part of this latter study, and also a preliminary step in a …


The Stabilizing Efects Of Disulfide Bonds On Limulus And Octopus Hemocyanin, Danielle Mercatante Jan 1997

The Stabilizing Efects Of Disulfide Bonds On Limulus And Octopus Hemocyanin, Danielle Mercatante

Honors Theses

Hemocyanin is a large molecular weight, oxygen carrying protein that is present in the hemolymph of mollusks and arthropods . Limulus, horseshoe crab, hemocyanin is made up of 48 hexamer subunits ( consisting of seven different repeating subunits) each of which have oxygen binding dinuclear copper active centers. Octopus hemocyanin is composed of a single kind of polypeptide chain that has seven functional units, or oxygen binding domains.

The goals of research conducted by Gregory Cole and Danielle Mercatante during the fall of 1996 and spring of 1997 were to gain a biochemical understanding of the structure of Limulus and …