Question

question 13 (1 point) ✓ saved
rna contains the following nitrogenous bases except
cytosine
uracil
thymine
adenine
question 14 (1 point) ✓ saved
each envelope is constructed from identical subunits called capsomeres.
true
false
question 15 (1 point) ✓ saved
the bending of a light ray as it passes through a medium such as a lens is known as
revolving
refraction
magnification
resolution

Explanation:

For Question 13: RNA has cytosine, uracil, adenine, and guanine. Thymine is in DNA.
For Question 14: Capsomeres make up the capsid, not the envelope.
For Question 15: Refraction is the bending of light as it passes through a medium like a lens.

Answer:

Question 13: C. thymine
Question 14: B. False
Question 15: B. refraction