Examlex
Which of these objects could transit (pass in front of) the Sun as seen from Saturn?
Purines
Nitrogenous bases found in DNA and RNA that include adenine and guanine.
Pyrimidines
One of the two types of nitrogenous bases found in nucleic acids, characterized by a single ring structure, and includes cytosine, thymine (DNA only), and uracil (RNA only).
Semiconservative Replication
The process by which DNA duplicates itself, where each new DNA molecule consists of one old strand and one newly synthesized strand.
Parental Strand
The original strand of DNA that serves as a template for the production of its counterpart in DNA replication, ensuring genetic information is accurately passed on.
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