Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 65485
TLS Online TPP Program

#Question id: 40410

Read the following assertion and reason and select the correct option.

    Assertion (A): A synthetic chemical like DDT is not considered a "biological material" in the context of biopatents.

      Reason (R): Biological materials for patenting purposes must be living organisms or substances naturally produced by them.

      #Applied Microbiology
      1.  Both A and R are true, and R is the correct explanation of A.
      2. Both A and R are true, but R is NOT the correct explanation of A
      3. A is true, but R is false.
      4.  A is false, but R is true.
      More Questions
      TLS Online TPP Program

      #Question id: 40466

      #Applied Microbiology

      Consider the following statements regarding the Biosynthesis (Synthesis) phase:

        Statement I: "Early proteins" synthesized during viral infection are typically enzymes needed for viral DNA replication and to halt host cell metabolism

        Statement II: "Late proteins" include structural components like capsid proteins and tail fibers, which are synthesized after the viral genome has been replicated.

        Which of the above statements is/are correct?
        TLS Online TPP Program

        #Question id: 40467

        #Applied Microbiology

          Assertion (A): The time interval between the penetration of the viral DNA and the release of new virions is known as the "Eclipse Period."

            Reason (R): During the eclipse period, complete infectious virus particles are not yet detected within the host cell because they are still being assembled from separate components.

            Choose the correct option:
            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: