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Biotechnology and its Applications Biology - Biotechnology and its Applications

Uttarakhand Board (UBSE) - STD 12 Science - Biology (Uttarakhand - English Medium). 442 questions in this chapter.

Question types

Biotechnology and its Applications question types

442 questions across 7 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.

442
Questions
7
Question groups
5
Question types
Sample Questions

Biotechnology and its Applications questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
The first clinical gene therapy was done for the treatment of:
  • A
    $\text{AIDS}.$
  • B
    Cancer.
  • C
    Cystic fibrosis.
  • ✓
    $\text{SCID} ($Servere Combined Immuno Deficiency resulting form deficiency of $\text{ADA)}$

Answer: D.

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Q 3M.C.Q (1 Marks)1 Mark
$\text{SCID}$ is caused by defective gene coding for enzyme $.........:$
  • ✓
    Adenosine deaminase
  • B
    Adenosine transaminase
  • C
    Adenosine transferase
  • D
    Guanosine transaminase Guanosine deaminase

Answer: A.

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Q 61 Marks Question1 Mark
Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because $–$
  • A
    Bacteria are resistant to the toxin.
  • B
    Toxin is immature.
  • ✓
    Toxin is inactive.
  • D
    Bacteria encloses toxin in a special sac.

Answer: C.

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Q 81 Marks Question1 Mark
Which of the following is a term used for the specific substance whose presence is being quantitatively or qualitative analysed?
  • A
    Substrate
  • ✓
    Analyte
  • C
    Antibody
  • D
    None of the above

Answer: B.

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Q 183 Marks Question3 Marks
Digrammatically represent the experimental steps in cloning and expressing an human gene (say the gene for growth hormone) into a bacterium like E. coli ?
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Q 235 Marks Questions5 Marks
Read the following and answer any four questions from (i) to (v) given below:
Transgenic animals can serve as factories that in some cases, may produce large amount of proteins more efficiently. Transgenic mice have been engineered to express human antibodies by introducing large segment of human DNA encoding human immunoglobulin genes. In transgenic large animals such as cow or sheep proteins of pharmaceutical value can be produced in large quantities in milk which is later purified. Transgenesis can be used to alter many phenotypic properties including growth rate, fat composition, milk production, hair texture, etc.
  1. The production of transgenic animals includes
  1. Identification and separation of desired gene.
  2. Combining the desired gene with appropriate vector.
  3. Introduction of vector in cells, tissues or embryos.
  4. All of these.
  1. In transgenic animals, i.e., cow and sheep proteins of pharmaceutical value are produced in large quantities in the
  1. Blood.
  2. Accumulated fat.
  3. Mammary glands.
  4. None of these.
  1. Mouse is mostly preferred animal for studies on gene transfer because.
  1. Short oestrous cycle.
  2. Long gestation period.
  3. Short generation time.
  4. Production of one or two offspring per pregnancy.
  1. Both (A) and (C)
  2. Both (A) and (B)
  3. Only D
  4. Both (C) and (D).
  1. Transgenic genes alter many phenotypic properties including:
  1. Growth rate.
  2. Fat composition.
  3. Milk production.
  4. All of these.
  1. Assertion: Transgenic mice have been engineered to express human antibodies.
Reason: Large segment of human DNA encoding human immunoglobulin have been transferred to mice.
  1. Both assertion and reason are true and reason is the correct explanation of assertion.
  2. Both assertion and reason are true but reason is not the correct explanation of assertion.
  3. Assertion is true but reason is false.
  4. Both assertion and reason are false.
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Q 245 Marks Questions5 Marks
  1. How is mature insulin different from proinsulin secreted by pancreas in humans?
  2. Explain how was human functional insulin produced using rDNA technology.
  3. Why is the functional insulin thus produced considered better than the ones used earlier by diabetic patients?
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Q 30Assertion (A) & Reason (B) MCQ1 Mark
Gene therapy has been successful in curing genetic diseases in laboratory animals through
  • A
    Exposure to $X-$ray to rectify the defective gene
  • B
    Replacing the defective gene with a functional gene
  • ✓
    Oral delivery of genes
  • D
    Use of therapeutic medicines to rectify the defective genes

Answer: C.

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Q 31Case study (4 Marks)4 Marks
The bacterium Bacillus thuringiensis is widely used in contemporary biology as:
  • A
    Agent for production of dairy products.
  • B
    Source of industrial enzyme.
  • C
    Indicator of water pollution.
  • ✓
    Insecticide.

Answer: D.

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Q 33Case study (4 Marks)4 Marks
A regulatory body working under $\text{MoEF}$ for the release of transgenic crop is $............:$
  • A
    $\text{NBPGR}$
  • B
    $\text{NSC}$
  • C
    $\text{NIPGR}$
  • ✓
    $\text{GEAC}$

Answer: D.

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Q 34Case study (4 Marks)4 Marks
Polymerase chain reaction:
  • A
    Is a method of synthesising human protein from human $\text{DNA}$
  • B
    Uses restriction enzymes
  • ✓
    Can produce billions of copies of a $\text{DNA}$ fragment
  • D
    Takes place naturally in bacteria

Answer: C.

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