widely researched. This research studies the effects of UV radiation on sex-determination in Ceratopteris richardii. Sex determination in Ceratopteris richardii is determined by antheridiogen‚ a pheromone that promotes maleness. In this experiment‚ UV radiation was used on the wild type and mutants Her1‚ which are insensitive to the male-inducing pheromone (does not form male gametophytes). Ceratopteris richardii spores were exposed to UV radiation at different stages during their life cycle. Wild type
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Ceratopteris richardii: The effects of increasing spore density in detecting higher percentages of sexually expressed gametes. Abstract: The Ceratopteris genus is a model plant system in allowing the study of life and reproductive cycles of spores‚ allowing for spore to gamete cellular and physical observation. The triangle water fern‚ Ceratopteris richardii‚ provided for visual identification of this transition. Spores of different densities were inoculated‚ cultured‚ and observed in germination
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One of the most famous speeches in The Tragedy of King Richard II is the speech John of Gaunt gives regarding the garden that is England. What some people may not realize is that there is much talk of gardens throughout the play‚ and that these particular speeches play into one another. Knowing that many of the garden speeches are related makes it easy to see that not only does this play describe the beauty of England‚ but also the corruption and ugliness within the country as well. John of Gaunts
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Ceratopteris Fern Growth and Analysis: Observing Germination and Effects of Ammonium Nitrate Treatment I: Abstract Observing the effects of ammonium nitrate has on the germination days of C-Fern gametophytes by constructing an experiment with two spore-sown petri dishes‚ one control and one treatment – a normal nutrient-rich agar petri dish and an ammonium nitrate-containing petri dish respectively. The two petri dishes were each inoculated with three drops of spore suspension
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COMPETENCIES A) Introduction. 1. What is the correct scientific name of the fern with which you are working? Why is it important for organisms to have scientific names versus common names? 2. Correctly classify the organism. To which kingdom‚ phylum‚ class‚ order‚ family‚ genus and species does it belong? 3. Provide a brief morphological description of the adult sporophyte generation of this genus. Be use to include both vegetative and reproductive structures. In what part of the world
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Harbor Seals Harbor seals inhabit the costal regions of the North Pacific and Atlantic oceans‚ and the Arctic regions. They can dive to 1450 feet and stay submerged for 25 minutes. The harbor seal weighs around 180 pounds and are six feet in length. Pups weigh about 24 pounds at birth. Harbor seal pups appear skinny when born and make sounds like they are crying. Harbor seals inhabit areas that are also frequented by humans and are easily disturbed. When disturbed the mothers sometimes abandon
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