Basis of Molecular Inheritance
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Basis of Molecular Inheritance
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25 Questions

1. The wild type E. coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the following changes takes place? [1995]
2. The eukaryotic genome differs from the prokaryotic genome because [1998]
3. In the genetic code dictionary - how many codons are used to code for all the 20 essential amino acids? [2003]
4. Which is not involved in protein synthesis?
5. The translation termination triplet is [1996]
6. Transformation experiment was first performed on which bacteria? [2002]
7. Which one of the following pairs of nitrogenous bases of nucleic acids - is wrongly matched with the category mentioned against it? [2008]
8. One gene -one enzyme hypothesis was postulated by [2006]
9. During transcription - RNA polymerase holoenzyme binds to a gene promoter and assumes a saddle-like structure - what is it-˜s DNA-binding sequence? [2007]
10. The process of translation is [1993]
11. One gene-one enzyme relationship was established for the first time in [2007]
12. Gene and cistron words are sometimes used synonymously because [2001]
13. Frequency of an allele in a isolated population may change due to [2001]
14. Who proved that DNA is basic genetic material? [1993]
15. Haploids are more suitable for mutation studies than the diploids. This is because [2008]
16. What does "lac" refer to in what we call the lac operon? [2003]
17. Experimental material in the study of DNA replication has been [1992]
18. Okazaki fragments are seen during [1996]
19. The telomeres of eukaryotic chromosomes consist of short sequences of [2004]
20. Genetic map is one that [2003]
21. During transcription - the DNA site at which RNA polymerase binds is called [2003]
22. Which step of translation does not consume a high energy phosphate bond? [1997]
23. In eukaryotes - after transcription of mRNA - some of its nucleotides are removed before it is translated into polypeptide. The nucleotides which are removed from mRNA are called
24. Nucleotide arrangement in DNA can be seen by [1993]
25. During translation initiation in prokaryotes - a GTP molecule is needed in [2003]

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