List of top Biology Questions on The DNA

The experimental proof for semiconservative replication of DNA was first shown in a

Which is present at 5' end of cukryotic mRNA?

Linker-DNA is attached to

Linker-DNA is attached to

What is ribotide

Which of the following enzymes cut the DNA molecule at specific nucleotide sequence

The association of histone H1 with a nucleosome indicates

The final proof for DNA as the genetic material came from the experiments of :

The DNA fragments separated on an agarose gel can be visualised after staining with

The association of histone H₁ with a nucleosome indicates:

The DNA double helix is exposed

The final proof for DNA as the genetic material came from the experiments of

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?

The haploid content of human $DNA$ is:

The double helix model of DNA was proposed by

The two strands of DNA are

The process of reverse transcription was discovered by

Common bacteria used in genetic engineering is:

The nuclear structure observed by Henkings in 50% of the insect sperm after spermatogenesis was

DNA polymorphism forms the basis of:

Which amino acids are histones rich in, facilitating their interaction with DNA ?

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Polymerase chain reaction is used in DNA amplification.
Reason (R): The ampicillin resistant gene is used as a selectable marker to check transformation.
In the light of the above statements, choose the correct answer from the options given below:

If adenine constitutes 30% of the bases in a DNA molecule, what percentage of the bases is guanine ?

Who first identified the transforming principle ?