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TLS Online TPP Program

#Question id: 18903

For imaging purpose, a specialized gamma camera is used to detect the radiation throughout the body. Most used techniques in nuclear imaging are 

#Unit 13. Methods in Biology
  1. PET (positron emission tomography)
  2. SPECT (Single photon emission computed tomography)
  3. Cesuim-137 method
  4. a and b both
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TLS Online TPP Program

#Question id: 3502

#Unit 11. Evolution and Behavior

Sexual dimorphism (SD) is a pattern that is seen throughout the animal kingdom and differences between the sexes in coloration are common in many organisms. Following some statement are given

A) There are many mechanisms that drive the evolution of SD, the most accepted mechanism being sexual selection

B) Mate choice is an important proximate mechanism of sexual selection, often the sex with the higher reproductive investment is the ‘choosy’ sex

C) Larger species are more sexually dimorphic than smaller species

D) Terrestrial species tend to be more sexually dimorphic than arboreal species

Which of the following above statement is correct?

Which one of the following is correct?
TLS Online TPP Program

#Question id: 4463

#Unit 3. Fundamental Processes

___?____ is a way to store and mobilize energy during transcription initiation, and its release upon escape is what enables polymerase to break free of the promoter and dislodge s factor from the core.
TLS Online TPP Program

#Question id: 19115

#Unit 8. Inheritance Biology

You are conducting genetic linkage studies of an autosomal recessive disease whose chromosomal location has not been firmly established. You are focused on two SSR markers that may be linked to each other and to the disease. Here are two families in which some individuals are affected:
                
Calculate LOD scores for linkage at θ= 0.02 between the disease and SSR43 in Family 1.
TLS Online TPP Program

#Question id: 648

#Unit 1. Molecules and their Interaction Relevant to Biology

Enzyme catalysis is regulated by a number of mechanisms. Also, the flux through metabolic pathways must be regulated. Given the metabolic pathway below, which choice accurately describes the regulation of compound G levels?
TLS Online TPP Program

#Question id: 13230

#Unit 6. System Physiology – Plant

In very dry soils, the water potential (Yw) may fall below what is called the permanent wilting point, the water potential of the soil is so low that plants cannot regain turgor pressure even if all water loss through transpiration ceases. This means that
a) The hydraulic conductivity decreases drastically 
b) The water potential of the soil (Yw) is less than or equal to the osmotic potential (Ys ) of the plant
c) The water potential of the soil (Yw) is more than the osmotic potential (Ys) of the plant
d) cell osmotic potential (Ys) varies with plant species, the permanent wilting point is clearly not a unique property of the soil, it depends on the plant species