What other factors than cell number could influence quorum sensing in V. fischeri?
A. Presence of other bacterial species
B. Diffusion constants in growth medium
C. Chemical composition of medium
D. Flow in growth medium
Answer:
A. Presence of other bacterial species
B. Diffusion constants in growth medium
C. Chemical composition of medium
D. Flow in growth medium
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If a child belonged to blood type O, he or she could
NOT have been produced by which set of parents? a. type A mother and type B father b. type A mother and type O father c. type AB mother and type O father d. type O mother and type O father e. type O mother and type B father
Large, multinucleate cells that break down bone are called:a
osteoblasts. b. chondrocytes. c. osteocytes. d. chondroblasts. e. osteoclasts
The following are all true about the life cycle of mosses except
A) external water is required for fertilization. B) flagellated sperm are produced. C) antheridia and archegonia are produced by gametophytes. D) the gametophyte generation is dominant. E) the growing embryo gives rise to the gametophyte.
What is a homeobox?
A. An enhancer region needed for expression of a homeotic gene B. The portion of the promoter to which a homeoprotein binds to activate transcription of genes important for development C. A sequence within a homeotic gene that encodes the DNA-binding portion of a transcription factor D. A cluster of homeotic genes E. None of the answers are correct.