Q27 / 180 · AIIMS 2003 · Botany
Which one of the following pairs of terms / names mean one and the same thing?
- AGene pool - genome
- BCodon - gene
- CCistron - triplet
- Correct answerDDNA fingerprinting - DNA profiling
Solution
Gene pool is the total gene present in a population. Genome is the total genetic constitution of an organism. Codon is the basic unit of genetic code, a sequence of three adjacent nucleotide in DNA or $m$ RNA that code for an amino acid. Gene is the basic unit of heredity, a sequence of DNA nucleotide that encodes a protein.
Cistron is a segment of DNA nucleotides that codes for a polypeptide chain. Triplet is a three nucleotides sequence coding for an amino acid.
Therefore,
$$
\begin{aligned}
& \text { codon } \approx \text { triplet } \\
& \text { cistron } \approx \text { gene }
\end{aligned}
$$
DNA fingerprinting is technically called DNA profiling or DNA typing.
Hence, the correct answer is option: 'D'.