TLS Online TPP Program

#Question id: 1439


Indirect-acting carcinogens are those that:

#Biochemistry
  1. chemically react with nitrogen and oxygen atoms in DNA.

  2. can modify bases in DNA so as to distort the normal pattern of base pairing.

  3. are mainly reactive electrophiles.

  4. generally unreactive, often water-insoluble compounds that can act as potent cancer inducers only after the introduction of electrophilic centers.

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TLS Online TPP Program

#Question id: 40162

#Botany

Q. Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): In angiosperms, the endosperm is triploid (3n).
Reason (R): It is formed by the fusion of one male gamete with the egg cell.
In light of the above statements, choose the correct answer from the options given below:

TLS Online TPP Program

#Question id: 40163

#Botany

Match List I with List II


LIST I (Causal Organism)LIST II (Disease)
A. Phytophthora infestansI. White Rust of Crucifers
B. Puccinia graminisII. Citrus Canker
C. Xanthomonas citriIII. Late Blight of Potato
D. Albugo candidaIV. Black Rust of Wheat
 Choose the correct answer from the options given below:

TLS Online TPP Program

#Question id: 40164

#Botany

Match List I with List II 

LIST I (Algal Class)LIST II (Stored Food/Feature)
A. ChlorophyceaeI. Floridean Starch
B. PhaeophyceaeII. Cyanophycean Starch
C. RhodophyceaeIII. Starch & Pyrenoids
D. CyanophyceaeIV. Mannitol & Laminarin
Choose the correct answer from the options given below:

TLS Online TPP Program

#Question id: 40165

#Botany

Match List I with List II
LIST I (Phytohormone)LIST II (Physiological Effect)
A. AuxinI. Fruit Ripening
B. GibberellinII. Stomatal Closure (Stress hormone)
C. EthyleneIII. Apical Dominance
D. Abscisic Acid (ABA)IV. Bolting (Internode elongation)
Choose the correct answer from the options given below:

TLS Online TPP Program

#Question id: 40166

#Botany

Match List I with List II
LIST I (Cell Organelle)LIST II (Function)
A. Smooth Endoplasmic ReticulumI. Formation of spindle fibers
B. Golgi ApparatusII. Lipid Synthesis
C. NucleolusIII. Glycosylation & Packaging
D. MicrotubulesIV. rRNA Synthesis
Choose the correct answer from the options given below:

TLS Online TPP Program

#Question id: 40167

#Environmental Science

Which of the following ecological pyramids is always upright?