In recombinant DNA technique, the term vector refers to:
1. | Donor DNA, is identified and picked up through electrophoresis |
2. | Plasmid transfers DNA into living cell |
3. | Collection of the entire genome in the form of plasmid |
4. | Enzymes cut the DNA at specific sites |
Given below is a sample of a portion of the DNA strand given the base sequence on the opposite strand. What is so special show in it?
5'- GAATTC...3'
3'- CTTAAG ... 5'
1. Detection mutation
2. Start codon at 5' end
3. Palindromic sequence of base pairs
4. Replication completed
A kind of biotechnology involving manipulation of DNA is:
1. DNA replication
2. genetic engineering
3. denaturation
4. renaturation
The thermostable enzymes, Taq and Pfu, Isolated from thermophilic bacteria are:
1. RNA polymerases
2. DNA ligases
3. DNA polymerases
4. Restriction endonucleases
Biolistic technique is used in:
1. Gene transfer process
2. Tissue culture process
3. Hybridization process
4. Germplasm conservation process
Following statements describe the characteristics of the enzyme Restriction Endonuclease. Identify the incorrect statement:
1. | The enzyme recognizes a specific palindromic nucleotide sequence in the DNA |
2. | The enzyme cuts DNA molecules at an identified position within the DNA |
3. | The enzyme binds DNA at specific sites and cuts only one of the two strands |
4. | The enzyme cuts the sugar-phosphate backbone at specific sites on each strand |
DNA precipitation, out of a mixture of biomolecules, can be achieved by treatment with:
1. Chilled chloroform
2. Isopropanol
3. Chilled ethanol
4. Methanol at room temperature
Which of the following equipment is essentially required for growing microbes on a large scale for the industrial production of enzymes?
1. | Bioreactor | 2. | BOD incubator |
3. | Sludge digester | 4. | Industrial oven |
The vector for T-DNA is:
1. | Thermus aquaticus |
2. | Salmonella typhimurium |
3. | Agrobacterium tumefaciens |
4. | Escherichia coli |
Restriction endonuclease:
1. cuts the DNA molecule randomly
2. cuts the DNA molecule at specific sites
3. restricts the synthesis of DNA inside the nucleus
4. synthesis DNA