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TLS Online TPP Program

#Question id: 10144

Choose the incorrect statements about photosynthesis dark reaction ?

#Section 2: General Biology
  1. The light dependent enzymes which are activated by Ferredoxin–thioredoxin system, contain oxidised di-sulfide bonds (—S—S—) in its active form
  2. C3 cycle or Calvin–Benson cycle is regulated by Photosystem I
  3. The activation of enzymes of the Calvin– Benson cycle starts in the light with the reduction of ferredoxin by the photosynthetic electron transport chain (Chl)
  4. The series of Ferredoxin–thioredoxin system in presence of light is,  2 Ferredoxin (oxidized) to 2 Ferredoxin (reduced)→ Trx(s−s) to Trx(SH) → Ferredoxin– thioredoxin reductase (s−s) to Ferredoxin– thioredoxin reductase(SH)→ Enzyme (inactive)(s−s) to Enzyme (active)(SH)
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TLS Online TPP Program

#Question id: 4345

#Section 3: Genetics, Cellular and Molecular Biology

For a repressible operon to be transcribed, which of the following conditions must occur?
TLS Online TPP Program

#Question id: 299

#Section 2: General Biology

Which bond acts like a bridge two molecules formed by a covalent bond?
TLS Online TPP Program

#Question id: 16019

#Section 6: Plant, Animal and Microbial Biotechnology

Which of the following abnormality, resulted from the inheritance of an unbalanced complement of chromosomes can be diagnosed through karotyping?
TLS Online TPP Program

#Question id: 1398

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following properties is (are) characteristic of a benign tumor?

a. well differentiated              b. localized to tissue of origin             c. metastatic               

d. promotes angiogenesis        e. surrounded by a fibrous capsule
TLS Online TPP Program

#Question id: 16850

#General Aptitude

The oval-shaped diamonds are used to make this necklace.Play Video