Deoxyribonucleic acid is better known as
a. vitamin D.
b. reproductive enzymes.
c. RNA
d. DNA
e. vitamin B12
D
You might also like to view...
The Chandra X-ray Observatory must operate in space because
A) x-rays do not penetrate Earth's atmosphere. B) x-rays are too dangerous to be allowed on the ground. C) x-ray telescopes require the use of grazing incidence mirrors. D) it was built by NASA.
Two identical concrete slabs lie flat and in contact with each other as shown in the figure
If the temperature increases by 40°C, the lower edges opposite the contact edges remained fixed in position, and the lower edges of the contact side remain in contact, at what angle will the slabs be tilted? The coefficient of thermal expansion of the concrete is 10 × 10-6/K. A) 19° B) 0.028° C) 15° D) 1.6° E) The answer depends on the length of the slabs.
Your weight as measured on your bathroom scale is
A) equal to your mass. B) the force due to gravity on you. C) a property of mechanical equilibrium. D) all of the above
Magma that solidifies before reaching Earth's surface is called
A) intrusive igneous rock. B) plutonic rock. C) a pluton. D) all of the above.