Unlike dna, rna

a. pairs uracil with adenosine instead of thymine.
b. contains nitrogenous bases.
c. has deoxyribose as the sugar within its nucleotide components.
d. contains two strands wrapped in a helix.

Influenza (the flu) is caused by a virus that attacks the respiratory system. which type of gene is most likely to be widely expressed in the body of someone who contracts the influenza virus? a the gene that controls the production of stem cells b the gene that controls the production of skin cells c the gene that controls the production of red blood cells d the gene that controls the production of white blood cells