Animal Breeding and Transgenic Animal problems
- 1. The technique, mainly used for the diagnosing birth defects in the fetus by means of needle, is called
Options- A. amniocentesis
- B. ectogensis
- C. transplantation
- D. all of the above Discuss
Correct Answer: amniocentesis
- 2. Cloning is a method by which numbers of genetically identical organisms are derived from a single organism by
Options- A. vegetative propagation
- B. vegetative initiation
- C. vegetative termination
- D. none of these Discuss
Correct Answer: vegetative propagation
- 3. Embryo transfer (ET) refers to the technique by which fertilized ova are collected from the reproductive tract of a genetically
Options- A. superior female and transferred to the inferior
- B. inferior female and transferred to the superior
- C. balanced female
- D. none of the above Discuss
Correct Answer: superior female and transferred to the inferior
- 4. For the transfer of whole individual chromosomes, they are isolated from the cells at
Options- A. prophase
- B. metaphase
- C. telophase
- D. anaphase Discuss
Correct Answer: metaphase
- 5. The number of follicles at any particular stage is governed by
Options- A. the rate of entry of dormant follicles
- B. the rate of growth of follicles
- C. the rate of loss of follicles
- D. all of the above Discuss
Correct Answer: all of the above
- 6. DNA is microinfected into the fertilized egg
Options- A. after the fusion of male and female nuclei
- B. before the fusion of male and female nuclei
- C. at the time of fusion of male and female nuclei
- D. any time, it can be infected Discuss
Correct Answer: before the fusion of male and female nuclei
- 7. Production of transgenic animals require transfections of
Options- A. eggs or embryos
- B. stem cells
- C. red blood cells
- D. all of these Discuss
Correct Answer: eggs or embryos
- 8. Transgenic goats have been used to produce which of the following protein that is used for dissolving blood clots?
Options- A. Amyloid precursor protein
- B. ?1-anti trypsin (AAT)
- C. Casein
- D. A variant of human tissue-type plasminogen activator Discuss
Correct Answer: A variant of human tissue-type plasminogen activator
- 9. Fusion of karyoplast with the enucleated cell is achieved in presence of
Options- A. cytochalasin B
- B. polyethylene glycol
- C. both (a) and (b)
- D. alcohol Discuss
Correct Answer: polyethylene glycol
- 10. Superovulation is primarily the result of
Options- 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. decreased atresia in small follicles (<1.7 mm) Discuss
Correct Answer: decreased atresia in medium and large follicles (>1.7 mm)
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