GATE Biotechnology online test series paper 7
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Question 1 of 15
Which one of the following techniques relies on the spin angular momentum of a photon?Correct
Question 2 of 15
Which one of the following statements is NOT true?Correct
Question 3 of 15
Based on their function, find the ODD one out.Correct
Question 4 of 15
Prandtl number is the ratio ofCorrect
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 cultivationCorrect
Question 6 of 15
A biological process is involved in the ________ treatment of industrial effluent.Correct
Question 7 of 15
In dead-end filtration, rate of filtration isCorrect
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 airCorrect
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 ribosomeCorrect
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?Correct
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 crosslinkingCorrect
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.Correct
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 erectaCorrect
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 maysCorrect
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. HemophiliaCorrect