A —COOH group is a(n) _____ group
a. carboxyl
b. hydroxyl
c. amino
d. methyl
e. carbonyl
Answer: a
You might also like to view...
In an ecosystem
A. both energy and nutrients cycle. B. energy flows and nutrients cycle. C. energy cycles and nutrients flow. D. both energy and nutrients flow. E. energy is contained with nutrient cycles.
Enzymes required for DNA replication are synthesized during the G1 phase
__________________ Indicate whether the statement is true or false.
Miller and Urey's experiment provided support for what hypothesis? In what way did the discovery of hydrothermal vents alleviate concern about the validity of their simulation of the Earth's primitive atmosphere?
What will be an ideal response?
Prokaryotes reproduce by ___________, which creates _____ exact daughter cell clone(s) of the original parent cell.
a. trinary fission; three b. sexual fission; one c. binary fission; two