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- Question
The cell cycle is controlled in most cells by
Options- A. time (after a certain length of time the cell divides)
- B. a series of checkpoints
- C. cell size (when the cell reaches a certain size, it divides)
- D. different cells exhibit different control strategies
- Correct Answer
- different cells exhibit different control strategies
- 1. Which of the followings are the metabolic products of glucose and glutamine?
Options- A. CO2 and NH3
- B. CO2 and lactate
- C. Lactate and ammonium
- D. Lactate only Discuss
- 2. DNA microinjection into the egg has been used to produce which of the following transgenic animals?
Options- A. Mice
- B. Chicken
- C. Pigs
- D. All of these Discuss
- 3. Which of the following dies from Ti plasmid infection?
Options- A. Rice
- B. Corn
- C. Sorghum
- D. All of these Discuss
- 4. Chromosomes may be isolated from metaphase cells by
Options- A. hypertonic lysis
- B. hypotonic lysis
- C. either (a) or (b)
- D. isotonic lysis Discuss
- 5. 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
- 6. Which protein has been produced generating a transgenic sheep that is used for replacement therapy for individuals at risk from emphysema?
Options- A. Plasminogen activator (tPA)
- B. ?-anti trypsin (AAT)
- C. Casein
- D. Amyloid precursor proteins Discuss
- 7. 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
- 8. For the transfer of whole individual chromosomes, they are isolated from the cells at
Options- A. prophase
- B. metaphase
- C. telophase
- D. anaphase Discuss
- 9. Excess CO2 suppress cell growth and productivity by
Options- A. inhibiting respiration
- B. altering intracellular pH by diffusing across cell membrane
- C. both (a) and (b)
- D. altering pH of the medium Discuss
- 10. The major problem associated with the isolation of free cells and cell aggregates from organs is that of
Options- A. releasing the cells from their supporting matrix
- B. inhibiting the cells from their supporting matrix
- C. disintegrating the cells from their supporting matrix
- D. none of the above Discuss
More questions
Correct Answer: Lactate and ammonium
Correct Answer: All of these
Correct Answer: All of these
Correct Answer: hypotonic lysis
Correct Answer: vegetative propagation
Correct Answer: ?-anti trypsin (AAT)
Correct Answer: superior female and transferred to the inferior
Correct Answer: metaphase
Correct Answer: both (a) and (b)
Correct Answer: releasing the cells from their supporting matrix
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