Which one of the following makes use of RNA as a template to synthesize DNA ?
- Reverse transcriptase
- DNA dependent RNA polymerase
- DNA polymerase
- RNA polymerase
The Correct Option is A
Solution and Explanation
Reverse transcriptase is an enzyme found in retroviruses like HIV, and it is capable of reverse transcription, which is the process of using an RNA template to synthesize a complementary DNA strand. This enzyme is essential for the replication of retroviral genomes and is widely used in molecular biology techniques like reverse transcription-polymerase chain reaction (RT-PCR) to convert RNA into DNA for analysis.
So, the correct option is (A): Reverse Transcript
Top Questions on Molecular Basis of Inheritance
- Stability, as one of the properties of genetic material, was very evident in one of the very early experiments in genetics. Name the scientist and describe his experiment. State the conclusion he arrived at.
- CBSE CLASS XII - 2024
- Biology
- Molecular Basis of Inheritance
- Assertion (A): In molecular diagnosis, single stranded DNA or RNA tagged with radioactive molecule is called a probe.
Reason (R): A probe always searches and hybridises with its complementary DNA in a clone of cells.- CBSE CLASS XII - 2024
- Biology
- Molecular Basis of Inheritance
- Explain the charging of an adaptor molecule. Why does this molecule need to be charged?
- CBSE CLASS XII - 2024
- Biology
- Molecular Basis of Inheritance
- Mention the two events of Plasmodium life cycle that occur within the female Anopheles body.
- CBSE CLASS XII - 2024
- Biology
- Molecular Basis of Inheritance
- Explain the genetic basis that results in the expression of this disorder.
- CBSE CLASS XII - 2024
- Biology
- Molecular Basis of Inheritance
Questions Asked in NEET exam
- In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m-2)yr-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
- NEET (UG) - 2024
- Ecosystems
- 1 gram of sodium hydroxide was treated with 25 ml. of 0.75 M HCI solution, the mass of sodium hydroxide left unreacted is equal to
- NEET (UG) - 2024
- Structural Representations Of Organic Compounds
In the given figure, which component has thin outer walls and highly thickened inner walls?
- NEET (UG) - 2024
- Cell Wall
- A light ray enters through a right angled prism at point P with the angle of incidence 30° as shown in figure. It travels through the prism parallel to its base BC and emerges along the face AC. The refractive index of the prism is :
- NEET (UG) - 2024
- Refraction Through A Prism
The output (Y) of the given logic gate is similar to the output of an/a :
- NEET (UG) - 2024
- Digital Electronics and Logic Gates
Concepts Used:
Transcription
The very first stage of gene expression is the procedure of transcription. In this procedure, mRNA is the place where the genetic information is stored which later aids in encoding a protein. In this process, the DNA strand acts as a guide in the making of mRNA. Despite the fact that there is one exception which is adenine base pairs with uracil instead of thymine.
Transcription Unit:
The transcription unit is a set of freshly combined RNA molecules that have been transcribed from DNA. The cause is to encode at least one gene. A protein that has been encoded or encrypted with a DNA transcription unit may have a coding sequence. Transcription has a lower copying fidelity rate when differentiated from DNA replication.
The Stages of Transcription:
The procedure of transcription is enzymatically catalyzed into three steps:
- Initiation
- Elongation
- Termination