Biology 1002B Chapter Notes - Chapter Cycle 8: Prostate Cancer, International Nomenclature Of Cosmetic Ingredients, P53

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bronzeseal528

26 May 2016

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Lecture 16 identify: characteristics that make drosophila an attractive model system: Has programmed death cells (which humans do too, so we can study those and better understand other ones: main stages in drosophila embryonic development: Miltinucleate blastoderm (bunch of nuclei divide but the cell itself does not) Nuclei migrate to periphery and continue dividing (migrate to the outer cell membrane) Cellular blastoderm (nuclei now in separate cells) Embryo hatches from egg, develops through three larval stages and a pupal stage, and then undergoes metamorphosis to produce an adult with wings: main role of maternal effect, segmentation and homeotic genes in drosophila development: Maternal effect genes are expressed by the mothers and control polarity of the egg and therefore the embryo. Decide where proteins congregate in the cell (head or bum? front or back?) Segmentation genes (gap genes), which are affected by maternal effect genes , subdivide the embryo along the anterior-posterior axis into broad regions.

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scarletcricket147

1. Septic shock is a serious, often fatal response to an infection in the bloodstream. What type of molecule usually induces septic shock? What receptors are mainly involved in the response? What cytokine plays the major role to cause the death and how?

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1- Describe the stages of C. elegans development. How many
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2. Why is it necessary for C. elegans to pass through several
larval stages, and how is this type of development different
from humans?

3. How does a hermaphrodite produce offspring without mating?

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ultramarinemule185

Biology 1002B Chapter Notes - Chapter Cycle 8: Prostate Cancer, International Nomenclature Of Cosmetic Ingredients, P53

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