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TLS Online TPP Program

#Question id: 3884

Compared with DNA polymerase, reverse transcriptase: 

#Unit 3. Fundamental Processes

  1. does not require a primer to initiate synthesis.

  2. introduces no errors into genetic material because it synthesizes RNA, not DNA.

  3. makes fewer errors in synthesizing a complementary polynucleotide.

  4. makes more errors because it lacks the 3'  5' proofreading exonuclease activity

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TLS Online TPP Program

#Question id: 23413

#General Aptitude

ELEGANCE is related to VULGARITY in the same way as GRACEFUL is related to
TLS Online TPP Program

#Question id: 16310

#Unit 7. System Physiology – Animal

The temperature of the body is regulated almost entirely by nervous feedback mechanisms, and almost all these mechanisms operate through temperature regulating centers located in the hypothalamus. Following statements are as follows:
A. The anterior hypothalamic-preoptic area contains large numbers of heat-sensitive neurons, as well as about one third as many cold-sensitive neurons. These neurons are believed to function as temperature sensors for controlling body temperature.
B. The heat-sensitive neurons increase their firing rate 2- to 10-fold in response to a 10°C increase in body temperature. 
C. The cold-sensitive neurons, by contrast, increase their firing rate when the body temperature increases.
D. Anterior hypothalamus integrates the central and peripheral temperature sensory signals.
Which of the following combination is correct?
TLS Online TPP Program

#Question id: 5695

#Unit 8. Inheritance Biology

Triploids are usually autopolyploids. They arise spontaneously in nature, but they can be constructed by geneticists from the cross of a 4n (tetraploid) and a 2n (diploid). Triploids are characteristically sterile due to
TLS Online TPP Program

#Question id: 20846

#Unit 12. Applied Biology

Nitrate is energetically the best electron acceptor under anoxic conditions and is generally used preferentially by which type of microbes?
TLS Online TPP Program

#Question id: 10902

#Unit 6. System Physiology – Plant

P-proteins from the genus Cucurbita consist of two major proteins: PP1, the phloem filament protein, and PP2, the phloem lectin. Both PP1 and PP2 are thought to be synthesized in_______A___________and transported via the_______B_________to the_______C______, where they associate to form P-protein filaments and P-protein bodies.