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प्रश्न
David is a molecular biologist. He uses a technique to know the amino acids occupy the first and the last positions in the Chain - A and Chain - B of insulin. Name the scientist whose contribution made it possible for David to use this technique.
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उत्तर
Sanger
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संबंधित प्रश्न
Retroviruses have no DNA. However, the DNA of the infected host cell does possess viral DNA. How is it possible?
Rearrange the following in the correct sequence to accomplish an important biological reaction:
(a) In vitro synthesis of copies of DNA of interest
(b) Chemically synthesized oligonucleotides
(c) Enzyme DNA-polymerase
(d) Complementary region of DNA
(e) Genomic DNA template
(f) Nucleotides provided
(g) Primers
(h) Thermostable DNA-polymerase (from Thermus aquaticus)
(i) Denaturation of ds-DNA
Enlist and write in brief about the different biological tools required in rDNA technology.
The technique which involves addition or deletion of genes is ______.
Which of the following is NOT involved in genetic engineering technique?
i. Combining genes from two organisms
ii. Gene cloning
iii. Transfer of lipid molecules
iv. Transfer of genes to new organisms
v. Repairing or replacing the defective genes by healthy genes
vi. Artificial synthesis of new gene
Describe three steps involved in mechanism of PCR.
pBR322, used very frequently in cloning experiments as a vector in E. coli is ______.
The plasmid of Agrobacterium tumefaciens that is now modified as a cloning vector is ______.
Plasmid is ______.
Give a reason for the following:
DNA cannot enter directly into the host cell.
