Which plant cells are the most common and the least specialized?
A. parenchyma
B. collenchyma
C. meristem
D. epidermis
E. sclerenchyma
Answer: A
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Which of the following sequences indicates the promoter region of a gene?
a. CAAT b. UAAG c. CTTT d. ACAT e. TAAC
Testing for differentiation of M. lacunata from other Moraxella species can best be performed by:
a. the ability to utilize acetate. b. the ability to liquefy serum. c. glucose utilization tests. d. growth on MacConkey agar.
Which of the following is an unusual event that occurs as trichomes differentiate?
a. DNA replication b. endoduplication c. cell expansion d. mitosis e. regulation of the cell cycle
A goiter results from low dietary iodine levels
A) because the hypothalamus cannot be inhibited without iodine. B) because ADH levels rise controllably. C) due to the activity of the anterior pituitary gland. D) as glucagon levels elevate. E) because thyroxine cannot be made, which results in high levels of TSH.