Asexually produced spores will result in offspring that ____
a. have no mating type
b. are genetically distinct from the parent fungus
c. are clones of the parent fungus
d. have a different mating type from the parent fungus
e. are unable to reproduce
ANSWER: c
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In a solution at pH 7.0, a polymer of lysine (polylysine) is a random coil with no secondary structure. In order for it to possibly assume an ?-helix structure, the pH of the solution must be:
A. 4 B 6 C. 8 D. 10 E. 12
C3 plants are more susceptible to photorespiration than either C4 or CAM plants. Why do most plants lack the C4
pathway?
a. Rubisco is more efficient in C3 plants when compared to rubisco of C4 and CAM plants. b. Photorespiration is not a serious problem for most plants. c. Most plant species do not have vacuoles in their cells to store the malate generated from CO2 taken in during the night. d. There is an energetic cost to C4 and CAM pathways that only makes them advantageous in very hot and/or arid environments. e. Switching between C3, C4, and CAM photosynthesis is very difficult for most plants.
List the three major steps in the development of angiosperms.
What will be an ideal response?
Pioneer plant species are usually characterized by ____
a. small size b. high dispersal rates c. slow maturation d. high dispersal rates and high numbers of offspring e. small size, efficient dispersal mechanisms, and slow maturation