Transgenic Animals Quiz | Transgenic Animals Objective Type Questions and Answers

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Questions
21 Transfection refers to which of the following?
A Synthesis of mRNA from DNA template
B Synthesis of protein based on mRNA sequence
C Introduction of foreign gene in to a cell
D The process by which a cell become malignant

Answer: Introduction of foreign gene in to a cell
22 Some types of variation are due to changes in the genetic material. What is this type of change called?
A Fertilisation
B Mutation
C Radiation
D Sterilisation

Answer: Mutation
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23 Which of the following is the process of choosing parent organisms for the characteristics that is wanted in their offspring?
A Active selection
B Reproductive selection
C Selective breeding
D Breeding selection

Answer: Selective breeding
24 Animal pharming can be defined as
A growing animals for farming
B programming animals to produce novel products
C generating transgenic animals for farming
D None of these

Answer: programming animals to produce novel products
25 Which of these carries the thousands of genes needed to allow animal and plant cells to pass on inherited characteristics?
A Chromosomes
B Chromatogram
C Chromatography
D Chromium

Answer: Chromosomes
26 Transfection refers to which of the following?
A Synthesis of mRNA from DNA template
B Synthesis of protein based on mRNA sequence
C Introduction of foreign gene in to a cell
D The process by which a cell become malignant

Answer: Introduction of foreign gene in to a cell
27 Transgenic goats have been used to produce which of the following protein that is used for dissolving blood clots?
A Amyloid precursor protein
B α1-anti trypsin (AAT)
C Casein
D A variant of human tissue-type plasminogen activator

Answer: A variant of human tissue-type plasminogen activator
28 Which of the following is the word used to describe what happens when the nucleus of a sperm joins with the nucleus of an egg cell?
A Sex
B Fertilisation
C Intercourse
D Reproduction

Answer: Fertilisation
29 Which of the following is the process of choosing parent organisms for the characteristics that is wanted in their offspring?
A Selective breeding
B Reproductive selection
C Active selection
D Breeding selection

Answer: Selective breeding
30 Which protein has been produced generating a transgenic sheep that is used for replacement therapy for individuals at risk from emphysema?
A α-anti trypsin (AAT)
B Plasminogen activator (tPA)
C Casein
D Amyloid precursor proteins

Answer: α-anti trypsin (AAT)
31 Chromosomes may be isolated from metaphase cells by
A hypertonic lysis
B hypotonic lysis
C either (a) or (b)
D isotonic lysis

Answer: hypotonic lysis
32 Superovulation is primarily the result of
A decreased atresia in medium and large follicles (>1.7 mm)
B increased atresia in medium and large follicles (>1.7 mm)
C increased atresia in the large follicles (<1.7 mm)
D All the above

Answer: decreased atresia in medium and large follicles (>1.7 mm)
33 When a fertilized egg cell develops into an embryo, the entropy of the living system
A decreases
B increases
C remains constant
D none of these

Answer: decreases
34 Fusion of karyoplast with the enucleated cell is achieved in presence of
A cytochalasin B
B polyethylene glycol
C both (a) and (b)
D alcohol

Answer: polyethylene glycol
35 Which of the following statements best describes a clone?
A An artificial life form
B An offspring where all of the genetic material in every cell is identical to that of both parents
C An offspring where all of the genetic material in every cell is identical to that of one of its parents
D A type of sheep

Answer: An offspring where all of the genetic material in every cell is identical to that of one of its parents
36 Production of transgenic animals require transfections of
A eggs or embryos
B stem cells
C red blood cells
D all of these

Answer: eggs or embryos
37 Which of the following statement is correct?
A Variation is caused by genes
B Variation is caused by the environment
C Variation can be caused by both genes and the environment
D None of the above

Answer: Variation is caused by genes
38 For the rapid genetic progress, embryo transfer (ET)
A will be as potent a tool as AI (artificial insemination)
B will not be as potent a tool as AI (artificial insemination)
C ET can't be used at all
D will be a superior tool than AI

Answer: will not be as potent a tool as AI (artificial insemination)
39 When the cells are enucleated and centrifuged, nuclei
A detach from cell and settle at the bottom
B detach from cell and remain in the supernatant
C nuclei remain attached to the cell
D none of the above

Answer: detach from cell and settle at the bottom
40 Superovulation is an
A increased ovulatory response by external hormonal therapy
B decreased ovulatory response by external hormonal therapy
C decreased ovulatory response by internal hormonal therapy
D increased ovulatory response by internal hormonal therapy

Answer: increased ovulatory response by external hormonal therapy

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