In a meristematic region, the cell plate during mitosis is perpendicular to the side of the stem. In what direction will the stem grow?
A) laterally in width
B) vertically in height
C) at a 45-degree angle from the ground
D) away from the sun
B
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Amniocentesis is
a. a surgical means of repairing deformities. b. a form of chemotherapy that modifies or inhibits gene expression or the function of gene products. c. used in prenatal diagnosis to detect chromosomal mutations and metabolic disorders in embryos. d. a form of gene replacement therapy. e. all of these.
A drug called Coumadin interferes with the action of vitamin K in the liver. What effect will Coumadin have on blood-clotting mechanisms?
A) Coumadin will make it necessary for the patient to eat extra leafy green vegetables. B) Vitamin K will not be absorbed from the digestive tract. C) The liver will not be able to produce needed clotting factors. D) Nothing, because vitamin K is not necessary for blood clotting.
Which structure is NOT part of the endomembrane system?
A) nuclear envelope B) chloroplast C) Golgi apparatus D) plasma membrane
Because the (ductus/urethra/ureter) is shorter in females than in males, it can be a portal of entry for pathogens
What will be an ideal response?