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Why is it essential to have a ' selectab...

Why is it essential to have a ' selectable marker' in a cloning vector

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A selectable marker is essetial in a cloning vector because it helps in indentifing and eliminating non transformant and selectively permiting the growth of the transformant .
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(i) Name the organism in which the vector shown in inserted to get the copies of the desired gene. (ii) Mention the area labelled in the vector responsible for controlling the copy number of the inserted gene. (iii) Name and explain the role of a selectable marker in the vector shown.

XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SET-II
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  2. Differentiate between analogy and homology giving one example on...

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  4. Why are some molecules called bioactive molecules ? Give two examples ...

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  6. Explain the response of all communities on environment over time.

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  7. (a) Name the causative agent of typhoid in humans. (b) Name the test a...

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  8. (a) Name the scientist who called tRNA an adapter molecule (b) Draw ...

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  9. Why are the wings of a butterfly and of a bat called analogous?

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  10. How are the two following varieties of sugarcane different from each o...

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  11. Name the cell from which the endosperm of coconut develops. Give the c...

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  12. How does Cu-T acts as an effective contraceptive for human females?

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  16. Draw a diagramatic sectional view of human ovary showin stages of ooge...

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  17. How does the pollen mother cell develop into a mature pollen grain? Il...

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  18. How did Hershey and Chase prove that DNA is the hereditarymaterial ? E...

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