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detailed lecture outline
detailed lecture outline

... the number of blastomeres increases, the timing becomes less predictable. After three days of cleavage, the pre-embryo is a solid ball of cells resembling a mulberry. This stage is called the morula.  The morula typically reaches the uterus on day 4. Over the next two days, the blastomeres form a b ...
Isotype switching Diversification of Igs after B cells encounter antigens
Isotype switching Diversification of Igs after B cells encounter antigens

...  After Ig gene rearrangement the heavy chain locus can be transcribed and functional mRNA is produced by removing introns from the primary transcripts.  The same rearranged V region gene can be used with any of the C region genes.  Naive B cells– B cells that have not encountered specific antigen ...
Letter: Genetic Variation in the Inflammasome and Atopic Dermatitis Susceptibility
Letter: Genetic Variation in the Inflammasome and Atopic Dermatitis Susceptibility

... 95% confidence interval (CI) and correction for multiple testing (10.000 permutations) were calculated using the UNPHASED program (v.3.1.4). All SNPs were shown to be in Hardy-Weinberg equilibrium in the control population. No statistical associations between variants and AD were found either overal ...
nursemate® - Sterling Technology
nursemate® - Sterling Technology

... stimulate organ 50gm of globulin protein growth and in EASY MIX powder development, but it gets the calf up and nursing. The immune proteins and other natural defenses found in nursemate® begin protecting the newborn while it is on the ground. 50 grams of absorbable immunoglobulins allow calves to b ...
PSEUDOCOELOMATE LABORATORY Phylum Gastrotricha 1
PSEUDOCOELOMATE LABORATORY Phylum Gastrotricha 1

... more than a meter long at maturity. All known acanthocephalans are endoparasites. Adults live in the intestines of vertebrates, especially fishes. Larval acanthocephalans parasitize arthropods – either insects or crustaceans, depending on the species. The most distinctive feature of an adult acantho ...
The Effect of Visual Obstructions on the Sexual Behavior of Guppies
The Effect of Visual Obstructions on the Sexual Behavior of Guppies

... The strength of mate choice and the intensity of sexual competition may be determined by factors that affect these behaviors. Female choosiness and male-male competition vary as a result of genetic and facultative behavioral responses to environmental conditions (Houde, 1997). The intensity of sexua ...
Hyalophora cecropia Innate Immunity in Insects, Function and Regulation of Hemolin from
Hyalophora cecropia Innate Immunity in Insects, Function and Regulation of Hemolin from

... responsible for the success of these animals. Today, insects have over 1 million species and make up 67% of all animal species (Campell and Reece, 2002). In general, insects have a short life span, produce many offspring and have developed a robust and fast defense. In contrast, mammals are long-liv ...
NAME___________________________________TA__________
NAME___________________________________TA__________

... The various antibody classes have specialized functions. Some act as specific signals, while other classes confer tissue type-specific advantages, such as when an infection must be fought in the mucus rather than the bloodstream. f) How does the body select effective, non-self T cells? ...
DEFINITIONS - Tehran University of Medical Sciences
DEFINITIONS - Tehran University of Medical Sciences

... Because there are some common antigen determinants between different microbes, so the antiserum against one kind of Ag can also react with another Ag and couse a cross ...
Male reproductive investment and queen mating
Male reproductive investment and queen mating

... (Hölldobler and Wilson, 1990; Starr, 1984; Weber, 1972). It therefore seems highly unlikely that males can replenish AG compounds in this short and energetically demanding time window, which implies that (1) the amount of AG compounds of males during the mating flight is fixed, and (2) larger AGs r ...
Reproduction
Reproduction

... difficult for them to find a mating partner. Stable environments are the best places for organisms that reproduce asexually. Asexual reproduction is also much less time and energy consuming. Asexuallyproduced generation does not have any genetic variations. That means that these organisms will not h ...
PDF
PDF

... differentiations. It may be interesting to investigate whether these antibodies recognize the same antigens in both tissues. However, at present the fact that these antibodies reveal differentiation antigens in the ovary probably merely indicates that the ovary is antigenically as well as morphologi ...
U8-Topic3_Protecting against disease
U8-Topic3_Protecting against disease

... membranes are a second barrier. They cover internal body surfaces, such as the digestive, respiratory, and reproductive tracts. Mucous membranes produce a thick, sticky fluid, called mucus. Mucus traps pathogens before they can cause infection. What is the body’s second line of defense? Pathogens ca ...
Comparative Genomics Final
Comparative Genomics Final

... from viruses to parasitic worm, and distinguish them from the organism’s own healthy tissue. Pathogens can rapidly evolve and adapt to new environments to avoid detection and destruction by the immune system: Phase variation ...
Identification and Characterization of Genes Involved in
Identification and Characterization of Genes Involved in

... marker specific for terminally differentiated crystal cells. A collection of 1040 P-element lethal lines generated and mapped by the Drosophila Genome Project, covering the second and third chromosomes, was screened. To distinguish the homozygous mutant embryos from those of other genotypes, the P-e ...
Histocompatibility
Histocompatibility

... The H-2 complex is composed of four major regions (K, I, S, and D), each defined by a number of recombinants. Genes are assigned to specific points along the chromosome, permitting a genetic map to be constructed showing loci. Genes of the MHC encoding class I, II, and III molecules are shown. A cM ...
Antigens
Antigens

... not come in contact with the immunizing systems of the body, therefore antibodies are not produced against such cells and tissues. However, if these tissues are injured, then autoantigens may be absorbed, and may cause the production of antibodies which have a toxic effect on the corresponding cells ...
The immune system protects the body from disease.
The immune system protects the body from disease.

... some B cells turn into memory B cells. These cells will remain in ...
13. Caner Gene Therapy
13. Caner Gene Therapy

... 1. Somatic gene therapy (somatic cells - most cells of the body) 2. Germline gene therapy (sperm cells, ova, stem cell precursors of sperm cells and ova) - All gene therapy to date on humans has been directed at somatic cells (whereas germline engineering in humans remains controversial) - For germl ...
V(D)J recombination - U of L Class Index
V(D)J recombination - U of L Class Index

... 4. N region insertion - At the junction between D and J segments there is often an insertion of a series of nucleotides which is catalyzed by the enzyme terminal transferase (catalyzes the polymerization of nucleotides into DNA without the need for a template). This leads to further diversity in the ...
Generation of B-cell
Generation of B-cell

... The specificity of a particular antibody, i.e. what the antibody recognises, is determined by the shape of its variable region (Figure 1); a particular antibody will bind to a protein that has a region with a complementary structure to the antibody’s own variable region. Diversity in the specificity ...
Microsoft Word 97
Microsoft Word 97

... and females still provide a means for sperm and eggs to move about inside reproductive canals. ...
human reproduction and development what you need to know
human reproduction and development what you need to know

... 4.1e Human reproduction and development are influenced by factors such as gene expression, hormones, and the environment. The reproductive cycle in males is regulated by hormones such as testosterone. 4.1g The structures and functions of the human male reproductive system are designed to produce gam ...
Nicotinic receptor signaling in nonexcitable
Nicotinic receptor signaling in nonexcitable

... muscarinic receptors, activation of which by ACh or other ligands affects many cellular functions that include proliferation, differentiation, apoptosis, adhesion, and migration (20, 34). This nonneuronal cholinergic system is an example of more general neuroendocrine-like mechanisms that mediate pe ...
Human Development
Human Development

... Biology 212 Anatomy & Physiology ...
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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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