TLS Online TPP Program

#Question id: 40380


Which of the following is NOT a characteristic feature of Gymnosperms?
A. Presence of naked seeds (ovules not enclosed by ovary wall).
B. Presence of vessels in the Xylem (with exceptions like Gnetum).
C. Dominant sporophytic phase in the life cycle.
D. Haplontic life cycle with a dominant gametophyte.
Choose the correct answer:

#Botany
  1. A and C
  2. B and D
  3. Only D
  4. Only B
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TLS Online TPP Program

#Question id: 40464

#Applied Microbiology

Match the Che protein in Column I with its primary function in Column II.

Column I (Protein)Column II (Function)
A. CheA1. Response regulator that controls motor switch
B. CheY2. Phosphatase that dephosphorylates CheY
C. CheZ3. Sensor Histidine Kinase
D. CheR4. Constitutive Methyltransferase

TLS Online TPP Program

#Question id: 40465

#Applied Microbiology

During the Penetration phase of a typical T-even bacteriophage infection, which of the following events occurs?

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?