Grazing at moderate levels stimulates plant productivity in grassland systems
Indicate whether the statement is true or false
TRUE
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What type of diseases require biosafety level (BSL) 4 procedures and facilities when working with samples that may be infected?
A) highly infectious diseases B) diseases with high mortality C) diseases for which no treatment or vaccine exist D) highly infectious diseases with high mortality for which no treatment or vaccine exist
For the complete respiration of one molecule of glucose, the citric acid cycle must turn a total of
What will be an ideal response?
A woman uses a home pregnancy test kit that tests for hCG hormone in urine. She knows this is a type of antibody assay from the kit brochure. Antibodies reacting with the hormone produce two lines on the test strip. What specific type of antibody assay does this represent?
A) a direct immunofluoresence test B) a complement fixation test C) an immunochromatographic assay D) an ELISA E) a neutralization assay
A certain type of congenital deafness in humans is caused by a rare autosomal dominant gene. In a mating involving a deaf man and a deaf woman, could all the children have normal hearing?
A) No, because it is dominant. Children always get the dominant alleles. B) Yes, because traits assort independently. C) No, because children favor their parents. D) Yes, because it must be recessive if it's rare. E) Yes, assuming that the parents are heterozygotes (because the gene is rare), it is possible that all of the children could have normal hearing.