Which plant cells are the most common and the least specialized?
A. Epidermis
B. Meristem
C. Collenchyma
D. Parenchyma
E. Sclerenchyma
Answer: D
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The rationale for including the plasmid that was not cloned with the linker was
A. the plasmid without the linker served as a positive control to demonstrate that the assay was performing as expected B. that the plasmid was used to make sure there was no RNA degradation C. the plasmid was used to make sure there was no DNA degradation D. the plasmid was included as a carrier to help separate the RNA that was produced from the unincorporated radioactive nucleotides. Bloom's Level:
Which of the following is the effect of atrazine
on cells?
a. they induce the conversion of testosterone to estrogen b. they block the production of cortisol c. they enhance the production of melatonin d. they cause the conversion of insulin into glucagon e. they prevent TSH from stimulating thyroid hormone production
Antihistamines relieve allergy symptoms by
a. inhibiting the release of histamines and cytokines. b. binding directly to histamines. c. destroying mast cells before they can produce histamines. d. binding to the allergens. e. stimulating effector T cells to produce more cytokines
Which of the following is not a characteristic of an animal cell membrane?
What will be an ideal response?