A child has a history of recurring serious bacterial infections. A blood sample shows lymphocyte levels are a little below normal, and no antibodies to the pathogens are detected in serologic tests. Based on this information, which of the following is
the likeliest diagnosis for this child?
A) Bruton-type agammaglobulinemia
B) Grave's disease
C) severe combined immune deficiency (SCID)
D) systemic lupus erythematosus (SLE)
E) hemolytic disease of the newborn
A
Bloom's Taxonomy: Application
Section: Immunodeficiency Diseases
Learning Outcome: 18.18
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Which of these statements is false regarding
stramenopiles? a. They have unique flagella with tinsel-like filaments. b. Some species are unicellular. c. They include diatoms and red algae. d. Most are photosynthetic. e. Their chloroplast structure hints at endosymbiotic origins.
The main difference between therapeutic cloning and reproductive cloning is that
A. in therapeutic cloning, embryonic stem cells are extracted from the blastocyst, while in reproductive cloning, the blastocyst is kept intact and implanted into a surrogate mother. B. unlike cells used for reproductive cloning, cells grown for therapeutic purposes do not display genetic imprinting problems. C. somatic cell nuclear transfer is used for therapeutic cloning, while gametic cell nuclear transfer is used in reproductive cloning. D. unlike cells used for reproductive cloning, cells grown for therapeutic purposes do not require the destruction of embryos.
Adult stem cells have limited therapeutic potential
A) because they are fully differentiated. B) because they lack a complete set of genes. C) due to their excessive numbers in tissues. D) because their developmental potential is limited to certain tissues.
Who discovered that DNA was the genetic material (or "transforming principle") that could convert nonvirulent R-type Diplococcus pneumoniae bacterium to the virulent S-type?
A) Avery, MacLeod, and McCarty B) Hershey and Chase C) Watson, Crick, Wilkins, and Franklin D) Erwin Chargaff E) Frederick Griffith