Advertisements
Advertisements
प्रश्न
Answer the following question based on Meselson and Stahl's experiment on E. coli :
How did they distinguish the heavy DNA molecules from the light DNA molecules? Explain.
उत्तर
They distinguished the heavy DNA molecules from the light DNA molecules by centrifuging in CsCl density gradient. This method helps to separate DNA molecules into bands by spinning them at high speeds in the presence of another molecule, such as cesium chloride. It forms a density gradient from the top to the bottom of the spinning tube.
APPEARS IN
संबंधित प्रश्न
Answer the following question:
What is a Recon?
The following question(s)/statement(s) has four suggested answers. Choose the correct option in the following case.
Meselson and Stahl’s experiment proved: _________.
Describe K+ transport stomatal mechanism.
Name the scientist who has contributed to the following: Reverse transcription
Give an account of Lederberg’s replica plating experiment to show the genetic basis of evolution.
Answer the following question based on Meselson and Stahl's experiment on E. coli :
Why did they allow the synthesis of the light and the heavy DNA molecules in the organism?
Answer the following question based on Meselson and Stahl's experiment on E. coli :
Write the conclusion the scientists arrived at, at the end of the experiment.
In some viruses, DNA is synthesised by using RNA as template. Such a DNA is called ______.
An individual exhibiting both male and female sexual characteristics in the body is known as ______.
Identify the CORRECT statements from the following.
- DNA acts as genetic material in most organisms.
- RNA acts as genetic material in some viruses.
- DNA acts as an adapter, structural and catalytic molecule in most biochemical reactions.
- Nucleic acids are of two types i.e. DNA and RNA.
