Which base is not found in DNA?
A. Cytosine
B. Guanine
C. Thymidine
D. Adenine
E. Uracil
E
Biology & Microbiology
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About 2/3 of a shark's brain is used for:
a. control of body movement. b. processing electrical currents from the water. c. olfaction. d. vision. e. processing water pressure differences.
Biology & Microbiology
The interval before the onset of DNA
replication is called a. the G1 stage. b. the G2 stage. c. the M stage. d. the S stage. e. all of these stages
Biology & Microbiology
Pollinating insects are in part responsible for _____ diversity
A. flowering plant. B. bird. C. predatory insect. D. herbivore. E. none of these
Biology & Microbiology
The leaves of ginkgo trees are unique because they have
A. unbranched veins. B. forked veins. C. multiply branching veins. D. veins in a netlike pattern. E. veins only around the edges.
Biology & Microbiology