Tag: dbt jrf 2018

35. If a fluorescent dye is injected into the lumen of the endoplasmic reticulum (ER), in which of the following compartments can fluorescence signal be observed? 1. ER only 2. […]

34. A hypothetical polypeptide hormone binds to its receptor with an association rate constant (ka) of 3.0×104 M-1 sec-1 and a dissociation rate constant (kd) of 6.9×10-6 sec-1 . What […]

33. In an organism, the amount of DNA per haploid genome is about 1.6 x 109 nucleotide pairs. Given that the length of DNA helix occupied by one nucleotide pair […]

32. ‘P’ is a cis-acting element, while ‘Q’ is a trans-acting element. Possible examples of ‘P’ and ‘Q’ are: 1. Enhancer and transcription factor 2. Transcription factor and operator 3. […]

31. Asymmetry of the DNA denaturation – renaturation curve 1. is directly proportional to the genomic complexity 2. is inversely proportional to the genomic complexity 3. is directly proportional to […]

30. The natural primer for reverse transcriptase in RNA tumor viruses is: 1. Oligo-dT 2. rRNA 3. 5S RNA 4. tRNA What Is the Natural Primer for Reverse Transcriptase in […]

29. What will be the probability of obtaining a plant with AaBBCc genotype from trihybrid (AaBbCc) parents? 1. 4 out of 64 2. 1 out of 64 3. 8 out […]

28. In a cross between two black Labrador retrievers the phenotypic ratio of the offspring is 9 black puppies to 3 chocolate puppies to 4 yellow puppies; this is an […]

27. In meiosis, an inversion in one member of a pair of homologous chromosomes will most likely lead to which of the following? 1. Non-disjunction of the affected chromosome 2. […]

26. If a completely radioactive double stranded DNA molecule undergoes two rounds of replication in a nonradioactive medium, what will be the radioactivity status of the four resulting molecules? 1. […]