Practice free Botany NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following enzymes help in the process of formation of phosphodiester bond during reverse transcription ?
RNA-dependent DNA polymerase, also known as reverse transcriptase, is the enzyme that synthesizes DNA from an RNA template. This process involves the formation of phosphodiester bonds.
The two strands of a DNAmolecule are separted and one of them is analysed for its A+ T / G + C ratio, This is found to be 0.2 What is the A+ T / G + C ratio of the other strand
chargaffs rule of complementarity of bases
DNA replication in lagging strand of most of the eukaryotic organis ms is
DNA replication in the lagging strand of eukaryotic organisms is semiconservative but discontinuous. This means that each new DNA molecule consists of one old strand and one new strand (semiconservative), and replication on the lagging strand occurs in short segments called Okazaki fragments, which are later joined together (discontinuous).
How many bases consist in an average gene ?
An average gene consists of about 3000 bases. This is a general estimate and can vary widely among different genes and organisms.
Which plant was used by Taylor to prove semiconservative replication at chromosomal level?
fact
State the use of moleculer medicine ?
Molecular medicine is a broad field that improves the diagnosis of diseases, is used in gene therapy, and helps in understanding several diseases like Alzheimer's and Parkinson's diseases. Therefore, all the options provided are correct.
In Which of the following DNA not directly involved ?
Translation is the process by which the genetic code carried by mRNA is decoded to produce the specific sequence of amino acids in a polypeptide chain. DNA is not directly involved in translation; instead, mRNA, tRNA, and ribosomes play key roles in this process.
Transcription begins when one of the following enzymes binds to promotor site.
Transcription begins when RNA polymerase binds to the promoter site on the DNA. This enzyme is responsible for synthesizing RNA by following the sequence of the DNA template strand.
The question consist of two statements each Assertion (A) and Reason (R) So answer these question choose anyone of the following four respones A :- Operon concept was given by Hershey and chase R : - Separation of DNA fragments are done by centrifugation technique
The operon concept was actually given by Jacob and Monod, not by Hershey and Chase. The separation of DNA fragments is most commonly done by gel electrophoresis, not by centrifugation. Therefore, both the assertion and the reason are false.
The question consist of two statements each Assertion (A) and Reason (R) So answer these question choose anyone of the following four respones A :- DNA is cut into Sections byusing restriction endonucleases R : - Ligase is used to join DNA nucleotides
Both Assertion (A) and Reason (R) are true. Restriction endonucleases are indeed used to cut DNA into sections, and ligase is used to join DNA nucleotides. However, the reason does not directly explain the assertion. The correct explanation for the use of restriction endonucleases is that they recognize specific sequences in DNA and cut them, which is different from the function of ligase, which joins DNA fragments.
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