Animal Cell Culture And Regulation(Biotechnology ) Questions and Answers

Question 1. In a dihybrid cross, the progeny of an Fl individual (hetero2ygous for both characters) will show a phenotypic ratio of
  1.    1:1:1:1
  2.    1:2:2:1
  3.    9:3:3:1
  4.    3:1:1:3
Explanation:-
Answer: Option A. -> 1:1:1:1
Answer: (a).1:1:1:1
Question 2. In an organism, the chromosome number is maintained constant because of
  1.    independent assortment
  2.    crossing over
  3.    DNA duplication
  4.    synapsis
Explanation:-
Answer: Option C. -> DNA duplication
Answer: (c).DNA duplication
Question 3. Which of the following is correct when a character shows continuous variation assuming a normal distribution?
  1.    It is governed by many genes with small cumulative effect
  2.    It is not controlled genetically
  3.    Many of the variation is due to fluctuation of climate
  4.    None of the above
Explanation:-
Answer: Option A. -> It is governed by many genes with small cumulative effect
Answer: (a).It is governed by many genes with small cumulative effect
Question 4. Raphanobrassica is a classical example of
  1.    aneuploidy
  2.    nullisomy
  3.    allopolyploidy
  4.    None of the above
Explanation:-
Answer: Option C. -> allopolyploidy
Answer: (c).allopolyploidy
Question 5. How many chromosomes are there in the budding yeast (S. cerevisiae)?
  1.    16
  2.    17
  3.    18
  4.    20
Explanation:-
Answer: Option A. -> 16
Answer: (a).16
Question 6. Which of the following is correct?
  1.    ECL can be established in suspension cultures whereas it is exceptional for primary cell lines (PCL)
  2.    ECL and PCL can be established in suspension cultures
  3.    PCL can be established in suspension cultures
  4.    none of the above
Explanation:-
Answer: Option A. -> ECL can be established in suspension cultures whereas it is exceptional for primary cell lines (PCL)
Answer: (a).ECL can be established in suspension cultures whereas it is exceptional for primary cell lines (PCL)
Question 7. What is the concentration of CO2 required for culturing animal cells?
  1.    2-5%
  2.    1-10%
  3.    10-15%
  4.    15-20%
Explanation:-
Answer: Option B. -> 1-10%
Answer: (b).1-10%
Question 8. Which of the followings are the metabolic products of glucose and glutamine?
  1.    CO2 and NH3
  2.    CO2 and lactate
  3.    Lactate and ammonium
  4.    Lactate only
Explanation:-
Answer: Option C. -> Lactate and ammonium
Answer: (c).Lactate and ammonium
Question 9. What are the main constituents of culture for animal cell growth?
  1.    Glucose and Glutamine
  2.    Growth factors
  3.    Cytokines
  4.    All of these
Explanation:-
Answer: Option A. -> Glucose and Glutamine
Answer: (a).Glucose and Glutamine
Question 10. To prevent the accumulation of lactate
  1.    low glutamine concentration is required
  2.    high glutamine concentration is required
  3.    low glucose concentration is required
  4.    high glucose concentration is required
Explanation:-
Answer: Option C. -> low glucose concentration is required
Answer: (c).low glucose concentration is required
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