Whereas DNA is composed of pyrimidines, RNA is composed of purines.
A cell may have more than one nucleus.True False
A change in protein structure does not necessarily change its function.True False
Only one ribosome at a time can translate an mRNA molecule.
DNA synthesis occurs during a cell's second growth phase.
In a given metaphase chromosome, one daughter chromosome came from the individual's father and the other one came from the mother.True False
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