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TLS Online TPP Program

#Question id: 10159

The ambient temperature exerts an important influence over Ω and the concentrations of CO2 and O2 around the active site of rubisco. Warmer environments have the effect of;  Find the incorrect one?

#Unit 6. System Physiology – Plant
  1. increasing the oxygenase activity of rubisco more than the carboxylase activity. The greater increase of KC for CO2 than of KO for O2 diminishes the W of rubisco
  2. The increase of [O2]/[CO2] decreases the vC/vO ratio; that is, the oxygenase activity of rubisco prevails over the carboxylase activity
  3. Increasing the stomatal aperture to conserve water, the stomatal closure the uptake of atmospheric CO2, thereby decreasing CO2 at the active site of rubisco

  4. warmer environments significantly limit the efficiency of photosynthetic carbon assimilation because the progressive increase in temperature tilts the balance away from photosynthesis (carboxylation) and toward photorespiration (oxygenation)

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TLS Online TPP Program

#Question id: 10677

#Unit 10. Ecological Principles

What interactions occur in epiphyte plants that grow on other plants?
TLS Online TPP Program

#Question id: 28329

#Unit 5. Developmental Biology

Hypoblast formation in birds and mammals is done by a process which involving the splitting of cellular sheet into two more or less parallel sheets, this process is known as___
TLS Online TPP Program

#Question id: 10409

#Unit 6. System Physiology – Plant

Three main classes of photoreceptors mediate the effects of UV-A/blue light:
a) the cryptochromes,
b) the phototropins,
c) the phytochrome and
d) the ZEITLUPE (ZTL)
Function of these photoreceptors are-
i) that can promote plant photomorphogenesis
ii) plays roles in day length perception and circadian rhythms
iii) regulate chloroplast movements, and stomatal opening
TLS Online TPP Program

#Question id: 3438

#Unit 11. Evolution and Behavior

The type of learning that causes specially trained dogs to salivate when they hear bells is called
TLS Online TPP Program

#Question id: 4772

#Unit 8. Inheritance Biology

A black Labrador, Three phenotype of black, brown and yellow is control by non allelic gene interaction. Following some genotype

 The following conclusions were made

A. The 9:3:4 ratio obtained upon selfing of AaBb here indicates recessive epistasis

B. This is a recessive epistasis where homozygous bb is epistatic to A and a.

C. When Gene A and B incompletely link, It will be produced all phenotype black, brown and yellow upon selfing of AaBb

D. When Gene A and B incompletely link, test cross of AaBb will be produced all phenotype black, brown and yellow in ratio 1:1:2 respectively

Which of the following conclusions are correct?