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TLS Online TPP Program

#Question id: 9211

Of the following ecosystem types, which have been impacted the most by humans?

#Unit 9. Diversity of Life Forms
  1. wetland and riparian
  2. desert and high alpine
  3. taiga and second-growth forests
  4. tundra and arctic
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TLS Online TPP Program

#Question id: 5532

#Unit 5. Developmental Biology

When does a human egg cell accomplish its meiotic division?
TLS Online TPP Program

#Question id: 19097

#Unit 6. System Physiology – Plant

Erwinia is a pathogen that deploy__
a) Attacking Initial biotrophic phase and extensive plant tissue damage at later stages or even death
b) Intimate intracellular contact with plant cells and minimal plant cell damage
c) Releases pectic enzyme that dissolve the cell wall
TLS Online TPP Program

#Question id: 10348

#Unit 6. System Physiology – Plant

During ammonium assimilation, requires two enzymes converting ammonium to amino acids. Each of which is Glutamine synthetase (GS), given below some statements about GS ;

a) GS transfers the amide group of glutamine to 2-oxoglutarate, yielding two molecules of glutamate

b) it requires a divalent cation such as Mg2+, Mn2+, or Co2+ as a cofactor

c) Plants contain two classes of GS, one in the cytosol and the other in root plastids or shoot chloroplasts

d) The cytosolic forms are expressed in germinating seeds or in the vascular bundles of roots and shoots and produce glutamate for intercellular nitrogen transport

e) The GS in root plastids generates amide nitrogen for local consumption; the GS in shoot chloroplasts reassimilates photorespiratory NH4+

f) Light and carbohydrate levels alter the expression of the cytosolic forms of the enzyme, but they have little effect on the plastid forms.

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

#Question id: 23448

#General Aptitude

You have made some silly mistakes which have been pointed out to you. You will:
TLS Online TPP Program

#Question id: 10270

#Unit 8. Inheritance Biology

Mendel crossed tall pea plants with dwarf ones. The F1 plants were all tall. When these F1 plants were selfed to produce F2 generation, he got a 3: 1 tall to dwarf ratio in the offspring. What is the probability that out of three plants (of F2 generation) picked up at random all three would be dwarf?