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Southern blots, but not colony blots, re...

Southern blots, but not colony blots, require which of the following ?

A

Autoradiography

B

Membrane filter

C

DNA hybridization

D

Gel electrophoresis

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The correct Answer is:
D
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The figure shows the restriction enzyme cutting sites (R1-R3) in wild type (n) and mutant (n) gene. If a radioactively labelled probe (that hybridises at a sequence close to R1) is used for detecting the presence of DNA fragments after gel electrophoresis and Southern blotting, which of the following band patterns will yout expect ? Note : L1 : wild type DNA, L2: mutant DNA

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Following pictograph shows favourite colour of boys in a colony. Study it and answer the following questions. What is the total number of boys in the colony ?

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GRB PUBLICATION-GENE EXPRESSION AND REGULATION-NCERT Corner(Exemplar Problems)
  1. Southern blots, but not colony blots, require which of the following ?

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  2. In a DNA strand the nucleotides are linked together by

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  3. A nucleoside differs from a nucleotide. It lacks the

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  4. Both deoxyribose and ribose belong to a class of sugars called

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  5. the fact that a purine base always pairs through hydrogen bonds with a...

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  6. The net electric charge on DNA and histones is

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  7. The promoter site and the terminator site for transciption are located...

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  8. Which of the following statements is the most appropriate for sickle c...

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  9. One of the following is true with respect to AUG

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  10. The first genetic material could be

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  11. With regard to mature mRNA in eukaryotes

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  12. The human chromosome with the highest and least number of gens in the...

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  13. Who amongst the following scientists had no contribution in the deve...

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  14. DNA is a polymer of nucleotides which are linked to each other by 3'-5...

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  15. Discontinuous synthesis of DNA occurs in one strand, because

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  16. Which of the following steps in transcription is catalysed by RNA poly...

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  17. Control of gene experssion takes place at the level of

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  18. Regulatory proteins are the accessory proteins that interact with RNA ...

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  19. Which was the last human chromosome to be completely sequenced ?

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  20. Which of the following are the functions of RNA

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  21. While analysing the DNA of an organism a total number of 5386 nucleoti...

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