| PRACTICE QUESTIONS, REVISION NOTES
& HIGH-YIELD REVIEW
| GRADED A+ | GUARANTEED SUCCESS
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales Included
, the _____ is a theory that states that in cells, information central dogma
only flows from DNA to RNA to proteins
a _____ is the basic unit of DNA nucleotide
a nucleotide is composed of a ______ bonded to both a sugar, phosphate group, nitrogenous base
______ and a _______
what are the two classes of nitrogen bases found in purines, pyrimidines
nucleic acid?
the purines include _____ and _____ adenine, guanine
the pyrimidines include _____ and _____ cytosine, thymine, uracil (replaces thymine in RNA)
antiparallel DNA strands are held together by _____ _____ hydrogen bonds
between the bases oriented toward the center