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- Question 1 of 15
Which one of the following techniques relies on the spin angular momentum of a photon?CorrectIncorrect
- Question 2 of 15
Which one of the following statements is NOT true?CorrectIncorrect
- Question 3 of 15
Based on their function, find the ODD one out.CorrectIncorrect
- Question 4 of 15
Prandtl number is the ratio ofCorrectIncorrect
- Question 5 of 15
Fed batch cultivation is suitable for which of the following?
P. Processes with substrate inhibition
Q. Processes with product inhibition
R. High cell density cultivationCorrectIncorrect
- Question 6 of 15
A biological process is involved in the ________ treatment of industrial effluent.CorrectIncorrect
- Question 7 of 15
In dead-end filtration, rate of filtration isCorrectIncorrect
- Question 8 of 15
Which combination of the following statements is CORRECT for cyanobacteria?
P. They can perform oxygenic photosynthesis
Q. Usually filamentous forms are involved in nitrogen fixation
R. Nitrogen fixation occurs in heterocysts
S. They cannot grow in a mineral medium exposed to light and airCorrectIncorrect
- Question 9 of 15
Which set of the following events occurs during the elongation step of translation?
P. Attachment of mRNA with the smaller subunit of ribosome
Q. Loading of correct aminoacyl-tRNA into the A site
R. Formation of a peptide bond between the amino acyl-tRNA in the A site and the peptide
chain that is attached to the peptidyl-tRNA in the P site
S. Dissociation of the ribosomal subunits
T. Translocation of peptidyl-tRNA from the A site to the P site of the ribosomeCorrectIncorrect
- Question 10 of 15
A DNA sequence, 5’-ATGGACGTGCTTCCCAAAGCATCGGGC-3’, is mutated to obtain
[Point mutations are shown in the lower case or ‘-’ within the sequences]
Which of the above mutant sequences DO NOT have frame-shift?CorrectIncorrect
- Question 11 of 15
Which of the following events occur during the stationary phase of bacterial growth?
P. Rise in cell number stops
Q. Spore formation in some Gram-positive bacteria such as Bacillus subtilis
R. Cell size increases in some Gram-negative bacteria such as Escherichia coli
S. Growth rate of bacterial cells nearly equals their death rate
T. Decrease in peptidoglycan crosslinkingCorrectIncorrect
- Question 12 of 15
Select the CORRECT combination of genetic components that are essential for the transfer of TDNA segment from Agrobacterium tumefaciens to plant cells.CorrectIncorrect
- Question 13 of 15
Match the secondary metabolites (Column-I) with the corresponding plant species (Column-II).
P. Morphine 1. Datura stramonium
Q. Pyrethrins 2. Catharanthus roseus
R. Scopolamine 3. Papaver somniferum
S. Vincristine 4. Tagetes erectaCorrectIncorrect
- Question 14 of 15
A variety of genetic elements are used in the transgenic plant research. Match the genetic elements (Column-I) with their corresponding source (Column-II).
P. Ubiquitin1 promoter 1. Agrobacterium tumefaciens
Q. Nos transcriptional terminator 2. Streptomyces hygroscopicus
R. bar selection marker gene 3. Escherichia coli
S. gus reporter gene 4. Zea maysCorrectIncorrect
- Question 15 of 15
Match the type of chromosomal inheritance (Column-I) with the corresponding genetic disease or trait (Column-II).
P. Autosomal recessive inheritance 1. Huntington disease
Q. Autosomal dominant inheritance 2. Hairy ears
R. X-linked inheritance 3. Cystic fibrosis
S. Y-linked inheritance 4. HemophiliaCorrectIncorrect