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Q1. EBV infects B cells and some epithelial cells. EBV enters via the CD21, part of B cell coreceptor.The atypical lymphocytes are characteristic of acute EBV infection. They are mostly T cells, with a preponderance of CD8 cytotoxic T cells. In most individuals, the infection is brought under control but not eradicated because the viral genome persists latently in many B cells. One of EBV encoded proteins is VIL-10, which is very much alike to human IL-10. EBV also stimulates endogenous synthesis of IL-10 and IL-6.
What effect do you think EBV would have on B cell function?
Q2. In Drosophila melanogaster, vestigial (short) wings (vg) are caused by a recessive allele of a gene that independently assorts with the gene pair that influences body hair. Hairy (h) results in a hairy body. A cross is made between fly with normal (wild) wings and hairy body and a fly with vestigial wings and a normal (wild) body. The phenotypically normal F1 flies were crossed among each other, and 1024 F2 flies were reared. What phenotypes would you expect in the F2, and in what actual numbers (not ratios) will you expect to find out them?
What are the underlying mechanisms that help assist a species to originate using sympatric speciation although they are not reproductively isolated like in allopatric speciation.Diversity within species that is using sympatric speciation.
What are the expected frequencies of three phenotypes (bald, red hair, yellow hair) in the male offspring of this cross? Imagine we observe 50 percent bald, 42 percent yellow hair, and 8 percent red hair. What is a recombination fraction between the ..
What may have been the cause of this disease that generally strikes a person much older than Hank. Flask A contains yeast cells in glucose-minimal salts broth incubated at 30 C with aeration. Flask B contains yeast with cells in glucose-minimal salts..
Organize the genotype in the table, define the origin (parental, single cross-over progeny and double-crossover progeny) and find out the order of the genes on the chromosome.
Point out similarities and differences in their scientific foundation. What is the mainly abundant cell type? Which is the slightest prevalent.
A man with a chin dimple and a non dimpled woman produce eight children, all having the chin dimple. Can you be certain of the man's genotype? Why or why not? What genotype is more likely, and why gives reason.
An assured drug that is used to control high blood pressure stimulates K+ excretion in the kidney such that plasma [K+] decreases from a normal value of 5 mM to 2.5 mM. Intracellular [K+] is largely unaffected. What effect this drug will have on the ..
Illustrate what is meant by motivation. What types of non-financial reward might a company employ to motivate employees.
What is the possibility that the son would have both the Xg antigen and ichthyosis. Why is the man a major candidate for a heart attack.
Design a biotechnological approach to getting better the amino acid content of wheat. How are you going to communicate your decision to the surgeons, medical center employees, governing board, and to public.
Jill is motivated by money and the things money will bring her. Jack is motivated by a belief in the significance of doing good things, and his incentives are based on that belief. Which theory incorporates both these types of motivational causes.
What would occur to the preferred habitat of your plant (Red Maple) in case of partial water drainage of the Mer bleue marsh (such as the water level would go down half the depth of the marsh).
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