TLS Online TPP Program

#Question id: 3701


Frederick Griffith accidentally discovered transformation when attempting to develop a vaccine for pneumonia. He injected mice with samples from S-strain (virulent) and/or R-strain (nonvirulent) pneumococci bacteria (Streptococcus pneumoniae). Which of the following results is NOT consistent with Griffith's experiments?

#Unit 3. Fundamental Processes
  1. injected S-strain; mouse dies.

  2. injected R-strain; mouse lives.

  3. injected heat-killed S-strain; mouse lives.

  4. injected mixture of heat-killed S-strain and live R-strain; mouse lives.

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TLS Online TPP Program

#Question id: 28299

#Unit 5. Developmental Biology

Mammalian fertilization occurs

TLS Online TPP Program

#Question id: 14082

#Unit 1. Molecules and their Interaction Relevant to Biology

Conditions where hoogesteen triple base pairing occurs are
A. Presence of alternate GC repeats
B. Presence of only pyrimidines in a strand
C. Presence of only Purines in a strand
D. Acidic pH
E. Basic pH
Choose the option containing correct statement in it

TLS Online TPP Program

#Question id: 12482

#Unit 2. Cellular Organization

The Rb protein has been called the “master brake” of the cell cycle. How the Rb protein acts as a cell cycle brake?

TLS Online TPP Program

#Question id: 11938

#Unit 7. System Physiology – Animal

Which of the following changes tends to increase peritubular capillary fluid reabsorption?

TLS Online TPP Program

#Question id: 10545

#Unit 6. System Physiology – Plant

Some given facts regarding effector molecules such as;

a) HC-toxin-induced plasma membrane hyperpolarization in guard cells causes massive K+ uptake and permanent stomatal opening

b) Xanthomonas, are proteins that target the plant cell nucleus and causes change in gene expression, called transcription activator-like (TAL) effectors bind to the host plant DNA and activate the expression of genes

c) Fusicoccin, a cyclic peptide, acts on the enzyme histone deacetylase in the nucleus, and may have a compromising effect on the expression of genes involved in defense

d) Gibberellins accelerate growth, resulting in bigger plants when compared with uninfested plants. The gibberellins produced by the fungi are identical to those produced endogenously by the plant

Which of the following combination is incorrect?