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प्रश्न
You are working in a biotechnology lab with a becterium namely E.coli. How will you cut the nucleotide sequence? explain it.
उत्तर
The DNA nucleotide sequence can be cut using Restriction endonucleases (RE). Restriction endonucleases – EcoRI cuts the DNA at GAATTC seqUence, producing sticky ends. CTTAAG
संबंधित प्रश्न
Give the importance/significance of transgenic animals.
Explain in brief - D.N.A. Fingerprinting. Give two examples where this technique is used.
_______ is an example of a GM crop developed for its nutritional value by using the soil bacterium Erwinia.
What is the use of tissue plasminogen activator?
Explain different biosafety issues that may arise due to genetically modified (GM) organisms.
What are biofertilizers?
The Aryans made ______ as offering to God.
Expand the following acronym which is used in the field of protechnology.
MAC
Which Recombinant proteins is obtained for Hepatitis-B by r-DNA technology.
Bacterias that can be used as manure.
A gene isolated from the bacterium Bacillus thuringiensis is integrated with the genome of cotton.
Define.
Vaccine
Give scientific reason.
Herbicide tolerant crop plants are beneficial for agriculture.
What is the safest method of vaccination?
Write the effect of biotechnology on agriculture and allied fields.
Read the following paragraph and write the answers to the questions based on them.
Vaccination gives either permanent or temporary immunity against a specific pathogen or disease. Traditionally, vaccines were prepared with the help of pathogens. Completely or partially killed pathogens were used as vaccines. However, due to this, there were chances of contracting the disease in case of some persons. Hence, as an alternative, scientists tried to artificially produce vaccines with the help of biotechnology. For this purpose, scientists produced the antigen in the laboratory with the help of genes isolated from the pathogen and used it as a vaccine. Thus, safer vaccines are being produced. Work on production of edible vaccines is in progress and presently, potatoes are being produced with the help of biotechnology. These potatoes are called transgenic potatoes. These potatoes will act against bacteria like Vibrio cholerae, Escherichia coli. Consumption of these raw potatoes generates immunity against pathogens. For the production of such edible vaccines, antigens are produced by isolating the desired gene from human pathogens and injecting it into plants.
- How can people who have been vaccinated get infected?
- Why are vaccines produced with the help of biotechnology safer than conventional vaccines?
- How does the immune system respond to vaccination?
- What is the disadvantage of transgenic potatoes?
- Why is vaccination more beneficial than antibiotics?
Study the following statements and select the correct option.
i. Factor VIII is used in the treatment of haemophilia A.
ii. Macrophage activating factor and tumor necrosis factor are used in cancer treatment.
iii. Hepatitis B can be prevented using relaxin.
The first human hormone produced by recombinant DNA technology is ______ .
Identify and complete the following correlation.
______ : Dwarfness :: Factor VIII : Haemophilia.
Define the Transduction.
