http://helpbiotech.net/forum/tags/2-nd-paper Get Answered en-US Thu, 09 Sep 2010 05:14:24 +0000 http://bbpress.org/?v=1.0.2 q http://helpbiotech.net/forum/search.php http://helpbiotech.net/forum/topic/2nd-paper-some-questions#post-18 Mon, 21 Dec 2009 17:57:25 +0000 shaikmicromvs 18@http://helpbiotech.net/forum/ <p>1.importance of 3 CCA sequences in t-RNA during protein synthesis (6 marks)<br /> 2.role of peptidyl transferase and aminoacyl t-rna synthetase enzyme in protein synthesis<br /> 3.importance of inbred strains in genetic research .why mostly mice is preferred<br /> 4.receptors expressed on B cells involved in B cell and T cell interactions<br /> 5.what is basis of working of repair system based on methyl group<br /> 6.different genotypes based on lac operon was given .the phenotype of LAC Z in presence or absence of IPTG was asked (6 marks)<br /> 7.principle of confocal microscopy<br /> 8.different types of RNA polymerases in Eukaryotes and their respective functions.<br /> 9.compulsory question ---in 20 marks<br /> A.in estimation of proteins showing 0.5 O.D. ,which graph is suitable for protein estimation was given (2 graphs were given)<br /> B. Why pH of a acid-basic buffer do not changes on dilution in water .why.<br /> C. calculation related to molar absorbtion coefficient (540 nm ,path length 1 cm )<br /> D. HOW TO PREPARE 5 MOLAR solution in (microlitres) of 0.002 M H2SO4 in 1500ml of distilled water<br /> 10.<br /> A.what the characteristic of industrially imp strains(6 marks)<br /> B.DIFFERENCE IN PHYTOREMEDIATION RELATED TO LEAVES AND ROOTS ( 6 MARKS)<br /> 11.When tryptophan levels are high ,how RNA polymerase is released in tryptophan operon ( same related question in paper 1 --- part 2 also)<br /> 12.How newly formed protein is released from t-RNA. </p> http://helpbiotech.net/forum/topic/2nd-paper-some-questions#post-16 Mon, 21 Dec 2009 09:30:00 +0000 surabhi agarwal 16@http://helpbiotech.net/forum/ <p>1.What are the advantages and disadvantages of biofertilizers?<br /> 2.Why pH of a acid-basic buffer do not changes on dilution?<br /> 3.Write the principles of a)Phase contrast microscope.<br /> b)Scanning microscope. </p> http://helpbiotech.net/forum/topic/2nd-paper-some-questions#post-15 Mon, 21 Dec 2009 05:25:27 +0000 helpBIOTECH Team 15@http://helpbiotech.net/forum/ <p>Great stuff </p> http://helpbiotech.net/forum/topic/2nd-paper-some-questions#post-14 Mon, 21 Dec 2009 05:14:50 +0000 sharma2b 14@http://helpbiotech.net/forum/ <p>1.what is the difference btween MHC class I and MHC class II?<br /> 2.how can bacterial generation time calculated both directly and indirectly?<br /> 3.once the calculation of generation time is done how can the antibiotic sensitivity tested?<br /> 4.what is the mode of action of penicillin? why some bacteria show resistance towards penicillin?<br /> 5.illustrate how HSP70 molecules helps in transport of protiens in an unfolded state? </p>