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Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?
Options:
Solution:
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Verified Answer
The correct answer is:
$5^{\prime}-\mathrm{GAATTC}-3^{\prime}$ $3^{\prime}-\mathrm{CTTAAG}-5^{\prime}$
The palindromic base sequence is a sequence in double-stranded nucleic acids that reads the same on both strands when reading one strand from left to right and the other from right to left (ie, both strands are read $5^{\prime} \rightarrow 3$ ). Out of the given options
$$
\begin{aligned}
& 5^{\prime}-\text { GAATTC-3 } \\
& 3 \text {-CTTAAG-5 }
\end{aligned}
$$
is a palindromic sequence that can be cut at about the middle by particular restriction enzyme.
$$
\begin{aligned}
& 5^{\prime}-\text { GAATTC-3 } \\
& 3 \text {-CTTAAG-5 }
\end{aligned}
$$
is a palindromic sequence that can be cut at about the middle by particular restriction enzyme.
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