Home
Class 12
BIOLOGY
If a sample has low concentration of a b...

If a sample has low concentration of a bacteria or a virus, then what laboratory technique will you use for early detection of the disease?

A

Microscopic examination

B

PCR

C

Serum analysis

D

Urine analysis

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • APPLICATIONS OF BIOTECHNOLOGY

    SARAS PUBLICATION|Exercise EXAMPLE |102 Videos

  • APPLICATION OF BIOTECHNOLOGY

    SARAS PUBLICATION|Exercise EXERCISE|25 Videos

  • APPLICATIONS OF BITECHNOLOGY

    SARAS PUBLICATION|Exercise EXAMPLE|29 Videos

Similar Questions

Explore conceptually related problems

Assertion : Early detection of the genetic defects is possible using conventional diagnostic method like microscopic examinations, serum analysis and urine analysis. Reason : These laboratory techniques are direct and always specific.

A simple pendu,um has a time eriod exactly 2 s when used i a laboratory at north pole. What wil be the time period if the same pendulum is used in a labroator at equator? Ccount for the earth's rotation only. Take g=(GM)/R^2=9.8ms^-2 and radius of earth =6400 km

Typhoid is caused by the attack of salmonella typhi. a. Is this a virus or bacteria? b. Which part of the body is affected by this disease? c. Name the test used for the diagnosis. d. Who is Typhoid Mary?

A laboratory blood test is 99% effective in detecting a certain disease when it is in fact, present. However, the test also yield a false positive result for 0.5% of the healthy person tested (i.e. if a healthy person is tested, then with probability 0.005, the test will imply he has the disease). If 0.1 percent of the population actually has the disease, what is the probability that a person has the disease given that his test result is positive?

A laboratory blood test is 99% effective in detecting a certain disease when it is in fact, present. However, the test also yields a false positive result for 0.5% of the healthy person tested (i.e. if a healthy person is tested, then, with probability 0.005, the test will imply he has the disease). If 0.1 percent of the population actually has the disease, what is the probability that a person has the disease given that his test result is positive ?

Gravitational waves: Waves are created on the surface of water when we drop a stone into it. Similarly you must have seen the waves generated on a strintg when both its ends are held in hand and it is shaken. Light is also a type of wave called the electromagnetic wave. Gamma rays, X-rays, ultraviolet rays, infrared rays, microwave and radio waves are all different types of electromagnetic waves. Astronomical objects emit these waves and we receive them using our instruments. All our knowledge about the universe has been obtained through these waves. Gravitational waves are a very different type of waves. They have been called the waves on the fabric of space-time. Insteine predicted their existence in 1916. These waves are very weak and it is very difficult to detect them. Scientists have constructed extremely sensitive instruments to detect the gravitational waves emitted by astronomical sources. Among these, LIGO (Laser Interferometrc Gravitational Wave Observatory) is the prominent one. Exactly after hundred years of their prediction, scientists detected these waves coming from an astronomical source. Indian scientist have contributed significantly in this discovery. This discovery has opened a new path to obtain information about the Universe. What are the waves on the fabric of space time called?

How will you avoid the growing of microbes in nutrient medium during culture process? What are the techniques used to remove the microbes?

A greenhouse has an electronic system (block diagram is given below ) which automatically switches ON a heater if the air temperature in the greenhouse drops too low . A manual switch is included so that the automatic system can be switched off . (Hint , The temperature sensor gives a logic -I output when the air temperature is normal and logic 0 when it is too cold ) a. What is meant by 1 and 0 in digital circuit ? b. Name the logic gate X . Why is it used ? c. Name the logic gate Y. d. Construct a truth table of this electronic system by taking A and B as inputs and D as output

SARAS PUBLICATION-APPLICATIONS OF BIOTECHNOLOGY -EXAMPLE
  1. If a sample has low concentration of a bacteria or a virus, then what ...

    Text Solution

    |

  2. What is genetically engineered insulin ?

    Text Solution

    |

  3. How was Insulin obtained before the advent of rDNA technology? What w...

    Text Solution

    |

  4. ELISA is a technique based on the principles of antigen- antibody reac...

    Text Solution

    |

  5. Gene therapy is an attempt to correct a Genetic defect by providing a ...

    Text Solution

    |

  6. If a person thinks he is infected with HIV, due to unprotected sex, an...

    Text Solution

    |

  7. What are DNA vaccines ?

    Text Solution

    |

  8. Explain how "Rosie" is different from a normal cow.

    Text Solution

    |

  9. Mention the number of primers required in each cycle of PCR. Writen th...

    Text Solution

    |

  10. What are transgenic animals?

    Text Solution

    |

  11. Differentiate between Somatic cell gene therapy and Germline gene ther...

    Text Solution

    |

  12. What are stem cells? Explain their role in the field of medicine.

    Text Solution

    |

  13. PCR is a useful tool for early diagnosis of an Infectious disease. Ela...

    Text Solution

    |

  14. Explain why cloning of Dolly, the sheep was such a major scientific br...

    Text Solution

    |

  15. Mention the advantages and disadvantages of cloning.

    Text Solution

    |

  16. How is the amplification of a gene sample of interest carried out usin...

    Text Solution

    |

  17. Explain how ADA deficiency can be corrected ?

    Text Solution

    |

  18. One of the applications of biotechnology is 'gene therapy" to treat a ...

    Text Solution

    |

  19. Name the hereditary disease for which the first clinical gene therapy ...

    Text Solution

    |

  20. Mention the steps involved in gene therapy to treat this disease.

    Text Solution

    |

  21. What are recombinant vaccines ? Explain the types .

    Text Solution

    |