In a double-stranded DNA molecule, one of the chains has the sequence CCCATTCTA when read from the 5? to the 3? end. Indicate true (T) and false (F) statements below regarding this chain. Your answer would be a four-letter string composed of letters T and F only, e.g. TTFT.
( ) The other chain is heavier, i.e. it has a greater mass.
( ) There are no C residues in the other chain.
( ) The 5?-terminal residue of the other chain is G.
( ) The other chain is pyrimidine-rich.

Question

In a double-stranded DNA molecule, one of the chains has the sequence CCCATTCTA when read from the 5? to the 3? end. Indicate true (T) and false (F) statements below regarding this chain. Your answer would be a four-letter string composed of letters T and F only, e.g. TTFT.
( )	The other chain is heavier, i.e. it has a greater mass.
( )	There are no C residues in the other chain.
( )	The 5?-terminal residue of the other chain is G.
( ) The other chain is pyrimidine-rich.

Quizplus · Accepted Answer

The sequence of the other chain is 5?-TAGAATGGG-3?, which makes it slightly heavier because it is mainly composed of the bulkier purine bases.

In a Double-Stranded DNA Molecule, One of the Chains Has