Knowledge of silencing genes provided scientists with clues to the expression of what characteristic in flowers such as petunia?
A. number of flower parts
B. placement of flower parts
C. color expression
D. vitamin deficiencies
E. time of flowering
C. color expression
You might also like to view...
Endotoxin is released when
A. cells are lysogenic for the beta phage. B. cells are starved for iron. C. Gram-negative pathogens lyse or divide. D. All of the choices are correct.
Figure 35.15
Use the structure of a skeletal muscle figure above to answer the following question.
The structure indicated by the letter "C" above represents ____.
A. thin filament B. myofibril C. thick filament D. myofilament E. muscle fiber
Which molecule is believed to have preceded the other two during the evolution of life?
A. DNA B. RNA C. Proteins
Production of ATP using the energy liberated when electrons from reduced chemical bonds are passed through the electron transport system is generally referred to as ________.
A. chemiosmotic B. substrate-level C. conformational change D. respiration