Question

Match List-I and List-II and select the answer using the code given below the lists :

List-I (Scientist) List-II (Discovery)

1. Frederick Griffith Phenomenon of transformation
2. Gamow A sequence of 3 nucleotide codes for a single amino acid
3. Friedrich Miescher Isolated DNA for the first time

• A. 1, 2 and 3 are correct
• B. 1 and 2 are correct, 3 is false
• C. 1 is correct, 2 and 3 are false
• D. 1 and 3 are correct, 2 is false

Answer 1

The correct option is A 1, 2 and 3 are correct

• Frederick Griffith discovered the phenomenon of transformation which states that genetic alteration is found in cells through exogenous cells which are called a transformation process.
• George Gamow suggested mRNA sequence in which there is a triplet of nucleotides is studied which is called codon. The genetic code is codon which creates amino acids.
• In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule. He is perhaps best known for his incorrect tetranucleotide hypothesis of DNA,

Hence, option ‘A’ is the correct answer.