If a Drosophila mother is mutant for dorsal, her embryos would
A. have a delay in the development of dorsal/ventral polarity.
B. develop normally.
C. lack dorsal structures.
D. lack ventral structures.
Answer: D
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Plants as well as brown, green, and red algae show a basic life cycle which involves the alternation of generations between a(n)
A. spore and pollen. B. megaspore and a microspore. C. seed and a cone. D. sporophyte and a gametophyte. E. egg and a sperm.
In a person with cystic fibrosis, the CFTR mutation causes the protein to be ____
a. embedded in the plasma membrane b. destroyed in the endoplasmic reticulum c. shuttled to the nuclear membrane instead of the plasma membrane d. shuttled to the plasma membrane instead of the nuclear membrane e. expelled from the cell by exocytosis before it can do its job
The seeds of fleshy fruits are most likely to be spread
by a. animals. b. water. c. wind. d. propulsion from the plant. e. none of these.
Generally, fever helps the body.
a. true b. false.