In a Drosophila oocyte, bicoid mRNA produced by the mother is localized at one end of the egg rather than evenly distributed throughout the egg. This is an example of:
A. translational control of gene expression
during development.
B. translational control of development.
C. hierarchical control of gene regulation
during development.
D. maternal developmental effect.
E. oocyte polarization.
E
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The bacterial species that can be described as able to grow in 6.5% sodium chloride (NaCl) and 40% bile, is part of the normal fecal flora of animals and humans, displays hemolysis, and is a major cause of nosocomial infections is:
a. E. faecalis. b. S. pneumoniae. c. S. pyogenes. d. S. agalactiae.
A lake is usually _____ and _____ than a pond.
A. larger; deeper B. smaller; shallower C. smaller; deeper D. saltier; warmer E. larger; shallower
During intramembranous ossification, what is the bone "model" made of?
What will be an ideal response?
What drives the process of transpiration?
a. upward pressure as sugar is forced into the roots b. evaporation c. pumping by the xylem cells d. passive transport