TLS OnlineQUESTION ID:1
Following are few statements for regeneration of plants from explants/tissues.
(A) Cytokinin is required for shoot development.
(B) Auxin is required for shoot development.
(C) Auxin to cytokinin ratio is very important.
(D) Jasmonic acid is required for both root and shoot development.
Which of the following combinations of above statements is true?
QUESTION ID:2
A set of neonatal mice are divided into four groups. Group I neonates were not primed with any antigen. Group 2 neonates were primed with KLH. Group 3 neonates were primed with KLH but thymectomized. Group 4 neonates were KLH-primed, thymectomized, but reconstituted with KLH- specific CD4+ T cells. All these mice, when grown adult, were challenged with KLH and the anti-KLH IgO antibody was measured in sera. Which of the following is the collects order of magnitude of antibody response? [> = greater than, > = greater than or equal to]
QUESTION ID:3
Choose the correct sequence of events in a next generation sequencing technology-based whole genome sequencing project
QUESTION ID:4
An investigator discovers a new receptor for a known ligand and wanted to identify the binding partner of the receptor i.e. its co-receptor. The anti-receptor antibody is not available but anti GFP-antibody is available. Which one of the following strategies is most
likely to identify the co-receptor?
QUESTION ID:5
The frequency distribution of tree heights in two forest areas with different annual rainfall are given Which of the following statistical analysis will you choose to test whether rainfall has an effect on tree heights?
QUESTION ID:6
Two species of plants were sampled in 32 quadrats in a forest. The mean and variance for the occurrence of species 1 were 16.2 and 48 and species 2 were 3.6 and 3.2 respectively. Which of the following statements about the distribution of the two species in these quadrats is supported by these findings?
QUESTION ID:7
Poly-L-Iysine exists in pure α-helix, β-sheet and random coiled conformation depending upon the solvent conditions. Tile values of mean residue ellipticity at 220 nm ([θ]220) are -35,700, -13,800 and +3,900 deg cm2 dmol-1 for α-helix, β-sheet and random coil
conformations of this polypeptide, respectively. The polypeptide exists in α- helix conformation at pH 10.8 and 250 C.
Addition of urea leads to a two state transition between α-helix and random coil conformation. It has been observed that [θ]222 of the polypeptide is -14800 degcm2dmol-1in the presence of 6M urea. The percentage of the polypeptide in α-helix conformation is:
QUESTION ID:8
Given below, is the result of a complementation test for six independent mutants (1 to 6)
