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TLS Online TPP Program

#Question id: 809

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which of the following double-stranded DNA molecules would denature at a lower temperature than the 40 base-pair double-stranded molecule described above?

#SCPH05 I Biotechnology

  1. a 40 base-pair molecule in which 25% of the bases are adenines

  2. a 30 base-pair molecule in which 40% of the bases are guanines

  3. a 20 base-pair molecule in which 10% of the bases are thymines

  4. a 10 base-pair molecule in which 20 % of the bases are cytosines

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TLS Online TPP Program

#Question id: 19766

#SCPH05 I Biotechnology

Which of the following molecule possesses linear structure ?
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#Question id: 14258

#SCPH05 I Biotechnology

C. roseus cells immobilized in Ca-alginate beads of diameter 0.5 mm are used for production of indole alkaloids (IA) in a fluidized-bed bioreactor. The rate limiting nutrient is glucose and no intraparticle diffusion limitations exist. Use the following data: Flow rate of the feed: Q = 1 l/h, Glucose in the feed: So = 30 g/l, Plant Cell Concentration: X = 6 g/l reac. The rate constant for IA formation: k = 5 d-1 (g/l)-1 Ks = 0.4 g/l, Column diameter: Do = 0.15 m. Growth is negligible and Monod kinetics is valid. For 95% glucose conversion determine required hydraulic residence time.
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#Question id: 939

#SCPH06 I Botany

Which of the following is/are true concerning transanimation reactions?
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#Question id: 7759

#I Life Science/ Life Sciences Group – I-V

WRKY plant-specific group of transcription factors that play important role in many plant metabolic and developmental processes such as;
a) It contain a 30 amino acid region named for the conserved amino acid sequence WRKYGQK in its N-terminal domain
b) It is an important regulators of plant–pathogen interactions as well as senescence
c) WRKY53 is involved in the regulation of dark-induced leaf senescence
d) In Arabidopsis, leaf senescence is delayed in knockout mutants of the WRKY53 gene
e) WRKY53 also binds to the promoter of the WRKY53 gene, inhibiting its own expression in a negative feedback loop
Which of the following given prediction about WRKY transcription factor is correct?
TLS Online TPP Program

#Question id: 5528

#SCPH06 I Botany

The lining of the uterus in which the mammalian embryo implantationsTakes place called as