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State the relation between gross and net primary productivity.
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Why is the coding sequence of an enzyme β-galactosidase a preferred selectable marker in comparison to the ones named above?
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Write the role of ‘restriction sites’ in the cloning vector pBR322.
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What is ‘Ori’ ? State its importance during cloning of a vector.
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Explain the importance of ‘Selectable marker’, with the help of a suitable example.
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What is the primary productivity of an ecosystem and how is it expressed?
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Explain what does the equation given below show :
NPP = GPP – R
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How would you find out whether a given tall garden pea plant is homozygous or heterzygous? Substantiate your answer with the help fo Punnett squares.
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Given below are the F2 – phenotypic ratios of two independently carried monohybrid crosses :
(i) 1 : 2 : 1
(ii) 3 : 1
Mention what does each ratio suggest.
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Answer the following question.
What are ‘flocs’, formed during secondary treatment of sewage?
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Answer the following question.
Write the basis on which Alfred Sturtevant explained gene mapping.
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Answer the following question.
What are 'flocs', formed during secondary treatment of sewage?
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Answer the following question.
β galactosidase enzyme is considered a better selectable marker. Justify the statement.
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Answer the following question.
Expand ‘YAC’ and mention what it was used for.
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Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.
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Answer the following question.
Describe the inter-relationship between productivity, gross primary productivity, and net productivity.
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"Artificial insemination helps overcome several problems of normal mating in cattle". Do you agree? Support your answer with any three reasons.
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Write the relationship between productivity, gross primary productivity, net primary productivity, and secondary productivity.
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How does the β-galactosidase coding sequence act as a selectable marker? Why is it a preferred selectable marker to antibiotic resistance genes? Explain.
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Name the tank to which the sewage water is passed after the preliminary treatment?
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