TLS Online TPP Program

#Question id: 454


Which statement is false about most metabolic pathways?

#Biochemistry
  1. Most pathways are reversible under physiological conditions.

  2. Pathways serve to increase the efficiency of energy transfers.

  3. The rates of pathway reactions vary to respond to changing conditions.

  4. The enzymes that catalyze reactions in metabolic pathways generally catalyze only a single step.

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TLS Online TPP Program

#Question id: 40468

#Applied Microbiology

Match the Viral Cycle Phase in Column I with the key molecular event in Column II.

Column I (Phase)Column II (Key Event)
A. Attachment1. Interaction of tail fibers with specific host cell wall receptors
B. Release2. Action of Lysozyme/Endolysin to break the cell wall
C. Lysogeny3. Integration of viral DNA into the host genome (Prophage)
D. Maturation4. Spontaneous self-assembly of capsid heads and tails

TLS Online TPP Program

#Question id: 40469

#Applied Microbiology

 While the amount of DNA doubles during the S phase, the number of chromosomes remains the same. In which subsequent phase does the actual separation of sister chromatids occur, effectively doubling the chromosome count temporarily?

TLS Online TPP Program

#Question id: 40470

#Applied Microbiology

Consider the following statements regarding the G1 Phase (Gap 1):

Statement I: The G1 phase corresponds to the interval between mitosis and the initiation of DNA replication.

Statement II: During G1, the cell is metabolically active and grows continuously, but does not replicate its DNA.

Which of the above statements is/are correct?

TLS Online TPP Program

#Question id: 40471

#Applied Microbiology

    Assertion (A): If a cell contains 2C amount of DNA in the G1 phase, it will contain 4C amount of DNA in the G2 phase.

      Reason (R): The G2 phase is the site of DNA replication where the genetic material is duplicated.

      Choose the correct option:

      TLS Online TPP Program

      #Question id: 40472

      #Applied Microbiology

       Match the Cell Cycle Phase in Column I with the specific event in Column II.

      Column I (Phase)Column II (Specific Event)
      A. S Phase1. Cells exit the cell cycle and enter a quiescent stage
      B. G2 Phase2. Synthesis of histone proteins and DNA replication
      C. G0 Phase3. Synthesis of tubulin proteins for spindle formation
      D. M Phase4. Condensation of chromatin into chromosomes

      TLS Online TPP Program

      #Question id: 40473

      #Botany

      Match the Algae in List-I with their Common Names in List-II.

      List-I (Algae)List-II (Common Name)
      A. BatrachospermumI. Water Net
      B. HydrodictyonII. Frog Spawn Alga
      C. UlvaIII. Umbrella Plant
      D. AcetabulariaIV. Sea Lettuce