A Gram-positive bacterium is characterized by the ____
a. presence of a thin peptidoglycan cell wall
b. presence of a thick peptidoglycan cell wall
c. absence of a cell wall
d. presence of an outer membrane
e. absence of ribosomes
ANSWER: b
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One application of modified flower parts has been the development of cultivated flowers from wild ones such as with:
A. petunias B. poinsettias C. apples D. roses E. oranges
Where does photosynthesis occur in eukaryotes?
a. plasma membrane b. Golgi bodies c. cytosol d. mitochondria e. chloroplasts
Land plants most likely evolved from which of the following organisms?
a. brown algae b. red algae c. green algae d. bryophytes e. seedless vascular plants
Refer to Figure 12-2. The correct designation for the DNA strand labeled C is:
a. the leading strand.
b. 3?.
c. Okazaki fragments.
d. polymerase.
e. a strand serving as a template.