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Drosophila innate immunity - University of Arizona | Ecology and
Drosophila innate immunity - University of Arizona | Ecology and

... Two distinct signaling pathways to counter infections In the mid-1990s we knew that Drosophila produces six distinct these three Rel proteins, DIF is the predominant transactivator in the antimicrobial peptides with activity directed against various fungi, antifungal and anti–Gram-positive bacterial ...
Evolutionary Development and HOX Genes
Evolutionary Development and HOX Genes

... the legs where it causes legs to develop. • It is turned off in the head. • In some mutant flies the Antp gene is switched on in the head producing legs instead of antennae. ...
StudentInstrSht-AsexvsSexRepro
StudentInstrSht-AsexvsSexRepro

... During Sexual Reproduction two specialized cells called sex cells or gametes (egg and sperm) are involved. Each gamete has only half the amount of DNA in a normal cell and are produced by a specialized type of division called meiosis. The reason why the gametes only contain half the DNA is so that w ...
Asexual vs. Sexual Reproduction
Asexual vs. Sexual Reproduction

... During Sexual Reproduction two specialized cells called sex cells or gametes (egg and sperm) are involved. Each gamete has only half the amount of DNA in a normal cell and are produced by a specialized type of division called meiosis. The reason why the gametes only contain half the DNA is so that w ...
Courtship role reversal and deceptive signals in the
Courtship role reversal and deceptive signals in the

... copulations for nuptial prey gifts. Females compete for male gifts within leks that are organized for a brief period each evening before dark. Before hovering within leks, females swallow air, inflating expandable pouches on the pleural margins of the abdomen. The result is a large saucer-like abdom ...
Reproductive Immunology Issue One: Cellular and
Reproductive Immunology Issue One: Cellular and

... Nguyen et al.10 of the immune systems of non-pregnant female and male reproductive tracts and the impact of endocrine influences. The unique compartmentalization of the reproductive tract from systemic immunity is emphasized as is its susceptibility to HIV-1 infection through sexual activity. Zhao a ...
Dissection guide - MUGAN`S BIOLOGY PAGE
Dissection guide - MUGAN`S BIOLOGY PAGE

... Examine first the larger female cross section. Note the thick non-cellular cuticle on the outside of the body wall. Below the cuticle is the thinner syncytial epidermis, which contains nuclei but few cell walls. The longitudinal muscles making up most of the body wall appear as fluffy, irregular mas ...
Does courtship behavior contribute to species
Does courtship behavior contribute to species

... A total of 568 trials were completed. Trial temperatures averaged 22.7 6 1.6 C (mean 6 SD, range 18.7 to 26.3 C), well within the natural range of temperatures experienced by crickets in the field. Tested males ranged in age from 5–32 days old (mean 6 SD ¼ 12.8 6 5.5); tested females ranged in age ...
Lecture2
Lecture2

... chorion also is important for dissolving mineral from the shell and making it available to the chick for forming bones The first 4 days are a time of dramatic change. Mistakes sometimes occur in this process. If it is a serious mistake, the defect is lethal and the embryo dies. In the incubation pro ...
Male mating success and survival in the field with respect to size
Male mating success and survival in the field with respect to size

... Among the boreal D. virilis group species, the male song seems to be an especially important courtship stimulus for the female. Absence of song totally blocks courtship of some species of this species group (Hoikkala, 1988; Liimatainen et al., 1992). The structure of male songs in the D. virilis gro ...
2 N - Malibu High School
2 N - Malibu High School

... Example, a new plant grows out of the root or a shoot from an existing plant. Produces only genetically identical offspring since all divisions are by mitosis. Offspring called clones meaning that each is an exact copy of the original organism This method of reproduction is rapid and effective all ...
File
File

... structure and function. 71. Base your answer to the following question on the information below and on your knowledge of biology. The reproductive cycle in a human female is not functioning properly. An imbalance of hormones is diagnosed as the cause. Identify one hormone directly involved in the hu ...
Supplementary Table S3
Supplementary Table S3

... myeloid cells. Activates transcription of IL-6 and several myeloid genes. Ectopic expression in multipotent hematopoietic progenitors leads to differentiation along the myeloid lineage, while dominant-negative versions inhibit myeloid differentiation. v-maf musculoaponeurotic fibrosarcoma oncogene h ...
Visualizing gene expression and function at the cellular level
Visualizing gene expression and function at the cellular level

... The work allowed me to investigate the profile of protein and DNA expression. The expression of protein can be detected by Western blot or by immunofluorescence using appropriate antibodies. And luciferase assay enables understanding the regulation of protein expression. On the other hand, PCR repre ...
Wk15-PlantPath.
Wk15-PlantPath.

... have used model organisms such as Drosophila and the nematode, so plant biologists have relied upon the mustard Arabidopsis thaliana to help them understand the genetics, physiology, development and structure of plants in general.  Although the efforts of Arabidopsis sequencers have perhaps been le ...
Laboratory 6 nematodes
Laboratory 6 nematodes

... common vagina that serves as a canal for expulsion of eggs and for movement of sperm upwards towards the oviducts. The vagina opens to the outside at the genital pore (also called the vulva). The uterus can be distinguished as that part of the tract in which young worms (larvae) can be seen moving a ...
Press Release  - Max-Planck
Press Release - Max-Planck

... other. Using newly developed proteomics technologies, scientists of the Max Planck Institute (MPI) of Biochemistry in Martinsried near Munich, Germany, have now comprehensively detected the messenger proteins secreted by immune cells during such an immune response. “Our method enables an analysis of ...
Document
Document

... In 1965, Dreyer & Bennett proposed that for a single isotype of antibody there may be: • A single C region gene encoded in the GERMLINE and separate from the V region genes • Multiple choices of V region genes available • A mechanism to rearrange V and C genes in the genome so that they can fuse to ...
Maternal sexual interactions affect offspring survival and ageing
Maternal sexual interactions affect offspring survival and ageing

... ageing assay, with the sexes assayed separately. At this point, each cohort of focal flies was exposed to an equal-sized group of 5-day-old virgin flies of the opposite sex, collected from Coffs Harbour population, and allowed to mate over a 2-h period during which time almost all flies would have m ...
Myiasis
Myiasis

... dipterans on living and necrotic tissue, liquid bodysubstance, or ingested food • Described in two ways: ▫ Location of the affected area ▫ Relationship between the fly and its host (obligate, facultative, or accidental) ...
Raven Biology - The College Board
Raven Biology - The College Board

... Sickle cell anemia Tay-Sachs Huntington’s Disease X-linked Color Blindness Trisomy 21/Down Syndrome Klinefelter Syndrome Reproduction issues Civic issues such as ownership of genetic information, privacy, historical contexts, etc. ...
unit 3b free-living roundwormsx
unit 3b free-living roundwormsx

... Males are usually smaller than females ...
Ch 7 Powerpoint
Ch 7 Powerpoint

... is highly restricted, which means that an extremely high rate of mutation can occur (~1 mutated base per 1000 cases).  This high rate of mutation is called somatic hypermutation. It occurs after the V,D, and J segments have been selected, and usually after class switching. ...
Document
Document

... • At 7 months G stops growing and becomes fibrous • Rapid growth of fetus causes G to pull testis into the ...
a  version - SEA
a version - SEA

... library has approximately 43,000 base pairs, 43% GC content, and 75 putative genes. From these fully sequenced and annotated P. larvae phages, three new clusters were documented. Through genomic annotation and comparison, we were able to identify individual genes and their products. Although phage D ...
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Drosophila melanogaster



Drosophila melanogaster is a species of fly (the taxonomic order Diptera) in the family Drosophilidae. The species is known generally as the common fruit fly or vinegar fly. Starting with Charles W. Woodworth's proposal of the use of this species as a model organism, D. melanogaster continues to be widely used for biological research in studies of genetics, physiology, microbial pathogenesis, and life history evolution. It is typically used because it is an animal species that is easy to care for, has four pairs of chromosomes, breeds quickly, and lays many eggs. D. melanogaster is a common pest in homes, restaurants, and other occupied places where food is served.Flies belonging to the family Tephritidae are also called ""fruit flies"". This can cause confusion, especially in Australia and South Africa, where the Mediterranean fruit fly Ceratitis capitata is an economic pest.
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