Innate immunity begins when ____
a. triggered by adaptive immunity
b. PAMP receptors bind to antigen
c. white blood cells start dividing
d. complement proteins are released
e. PAMPs are detected
ANSWER: b
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How do dormancy and hibernation differ?
a. Dormancy is a response to stressful environmental conditions, while hibernation can occur at any time. b. Hibernation is a seasonal strategy, while dormancy is a response to any stressful environmental condition. c. During dormancy, activity is greatly reduced, but the same is not true of hibernation. d. Hibernation is a temporary condition, while dormancy usually lasts for longer periods.
In humans, typically only infants produce the enzyme lactase to break down lactose. Some adults have changes in that allow transcription factors to bind and turn on expression of the lactase gene into adulthood.
A. codons B. mRNA C. exons D. RNA polymerase E. enhancers
In comparing mitosis and meiosis, which of the
following statements is TRUE?
a. Crossing over occurs in a prophase of meiosis and of mitosis. b. The product of both is two cells. c. In both processes, homologous chromosomes pair up. d. In meiosis, sister chromatids separate in a metaphase, whereas in mitosis they separate in an anaphase. e. Anaphase of mitosis is most like Anaphase II of meiosis.
The mapping of the human genome in the mid-1980s was integral for identifying new human genetic markers because of the identification of what types of polymorphic DNA markers?
What will be an ideal response?