You are studying a trafficking protein important for secretion in helper T cells. What is the likely outcome of a defect in this protein?
A. impaired secretion of immunoglobulins
B. impaired secretion of degraded antigens
C. impaired secretion of membrane attack complex
D. impaired secretion of cytokines
D. impaired secretion of cytokines
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Proteomics is defined as the _____
A) linkage of each gene to a particular protein B) study of the full protein set encoded by a genome C) totality of the functional possibilities of a single protein D) study of how amino acids are ordered in a protein E) study of how a single gene activates many proteins
Which of these five evolutionary forces is rare and usually not considered by population geneticists?
A. mutation B. selection C. non-random mating D. genetic drift E. immigration
The single-factor crosses performed by Mendel support the observation that
A. the two alleles for a given gene are distributed randomly among an individual's gametes. B. the two alleles for a given gene are found within the same gamete. C. if the recessive alleles for two different genes are on the same chromosome, they will never be found within the same gamete. D. only the dominant alleles for a given trait are found in an organism's gametes. E. if the dominant alleles for two different genes are on different chromosomes, they will never be found within the same gamete.
Which of the following statements is true?
A) PID is a severe type of diarrhea in which infection spreads from the intestines to the bloodstream B) PID can result from Neisseria infection C) PID is more common in men than women D) Member of the family Enterobacteriaceae usually cause PID