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प्रश्न
Bt-cotton shows adverse effect on the population of which butterfly?
उत्तर
Bt-cotton shows adverse effect on the Monarch butterfly populations.
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संबंधित प्रश्न
One of the major contributions of biotechnology is to develop pest-resistant varieties of cotton plants. Explain how it has been made possible.
Write a short note on Electrophoresis.
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Vectors are ____________ molecules that carry a foreign gene and replicate inside the host cell.
Consider there is only one double stranded DNA molecule initially along with all other requirements of PCR. If a PCR machines performs 10 cycles of reaction then bow many double stranded DNA molecules would be present at the end?
Which of the following statements is correct with respect to cellular respiration?
Which of the following is the correct recognition sequence of restriction enzyme Eco RI?
Identify the desirable characteristics for a plasmid used in rDNA technology from the following.
- Ability to multiply and express outside the host in a bioreactor.
- A highly active promoter.
- A site at which replication can be initiated.
- One or more identifiable marker genes.
- One or more unique restriction sites.
Which of the following statements are true about cloning vectors?
- Vectors are DNA molecules that carry a foreign DNA segment.
- The replicated DNA is introduced into the host cell.
- It possesses the origin of replication (Ori).
- Vectors may be plasmid, bacteriophage, Yeast artificial chromosomes (YACs), etc.
- Vectors do not require a selectable marker to identify and eliminate non-transformants.
Choose the correct answer from the options given below.
Explain the mechanism of PCR.
