Question

Which of the following feature is represented by chemically less reactive and
structurally more stable nucleic acid.
(1) Presence of 5-methyluracil
(2) Catalytie nature
(3) Scope for rapid mutation
(4) Direct involvement in protein synthesis​

Answer 1

Answer:

2) Presence of 5-methyl uracil

Explanation:

1. The presence of an extra methyl group in the 5-methyl uracil or Thymine is important for DNA structural stability, also it protects it from chemical damage.
2. RNA can act as catalytic enzymes.
3. RNA is more prone to mutation due to its structure.
4. DNA is not involved in the direct synthesis of proteins, it takes the help of RNA.

Answer 2

(1) Presence of 5-methyluracil is represented by chemically less reactive and structurally more stable nucleic acid.

Explanation:

1.The presence of an extra methyl group in the 5-methyl uracil or Thymine is important for DNA structural stability, also it protects it from chemical damage.

2.Catalytic RNA (ribonucleic acid) are RNA molecules that have enzyme activity. The classic example is the hammerhead ribozyme.

3.Catalytic RNAs are involved in a number of biological processes, including RNA processing and protein synthesis.

4.A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection