A greenhouse manager wants to encourage long-term, productive flowering instead of short-term, rapid flowering in annual garden plants that are for sale. Which action would accomplish that goal?
A) pruning away early flowers
B) limiting water and fertilizer
C) moving the plants to the shadiest part of the greenhouse
D) allowing any flowers to become fruits and seeds
A
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Which of the following types of patients should be placed into reverse isolation?
A) a patient with tuberculosis B) a patient infected with MRSA C) a leukopenic patient D) a patient with pneumonic plague
In a hypotonic solution, what happens to mammalian cells such as red blood cells?
a. shrink due to water loss b. stay the same size due to water moving in and out at the same rate c. swell due to water gain d. apoptosis
Compare and contrast the origin and roles of B cells and T cells
What will be an ideal response?
A pair-rule gene in Drosophila called runt controls some of sex and nervous system formation. In the mouse, runt controls blood cell formation, osteogenesis, and genital structures
In humans, the analog of runt, when mutated, causes children to lack collar bones, and the opening at the top of the skull fails to close. What kind of experiment could tell you whether these genes are conserved in function? A) sequencing of the runt genes from each of the three species of organisms B) in vivo experiment that inserts a copy of the mouse runt gene into a segmented fly embryo C) in vitro experiment that inserts a copy of the mouse runt gene into cells from an unsegmented Drosophila embryo D) sequencing the proteins encoded for by each of the species' runt genes E) use of immunological methods to identify the target cells of the species' runt transcription factors