The DNA molecule can be altered
a. by chance mismatching of base pairs.
b. by damage from exposure to radioactivity.
c. if the host cell is intelligent and determines that an alteration would help the cell survive.
d. all of the above
e. a and b above
E
You might also like to view...
Doppler Effect: A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats with a frequency of 827 Hz between the sound it emits and the echo bouncing from the wall. What is the speed of the bat if the speed of sound in air is 343 m/s?
A. 2.7 m/s B. 3.0 m/s C. 3.6 m/s D. 5.4 m/s E. 9.0 m/s
When a wave is ______________, the angle of reflection equals the angle of incidence
Fill in the blank(s) with correct word
The national debt is measured in trillions of dollars. Which of the following is a representation of a trillion?
A) 1 × 1015 B) 1 × 1012 C) 1 × 109 D) 1 × 106 E) 1 × 103
The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza dough into the air. The disk becomes wider during its flight, while its rotational speed
A) remains constant. B) quickens. C) slows.