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Biology 1525 MCQs [All-Courses]

Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

Pepsinogen is produced from__________?

A Mucous cells

B Parietal cells

C Zymogen cells

D All of these

Review Detailed Answer

Correct Answer: Zymogen cells

In the lytic cycle of bacteriophage the host DNA is__________?

A Replicated

B Turn off by the protein coat.

C Digested into its nucleotides

D Turned on by the removal of the protein coat

Review Detailed Answer

Correct Answer: Digested into its nucleotides

Which of the following is an RNA virus:

A Influenza virus

B Herpes virus

C HBV

D Pox virus

Review Detailed Answer

Correct Answer: Influenza virus

Temperate phage may exist as_____________?

A Prophage

B Capsid

C Viron

D Retrovirus

Review Detailed Answer

Correct Answer: Prophage

In the Lysogenic cycle the DNA of the bacteriophage__________________?

A Joins the bacterial chromosomes

B Attaches to the inner surface of the host membrane

C Is immediately degraded when enters the host

D Goes directly to host ribosomes for translation

Review Detailed Answer

Correct Answer: Joins the bacterial chromosomes

Tobacco mosaic virus is__________?

A Spherical

B Rod Shaped

C Tadpole like

D Hexagonal

Review Detailed Answer

Correct Answer: Rod Shaped

In life cycle of bacteriophage which step occur after attachment of prophage with the receptor site of the bacterial cell wall_____________?

A Absorption

B Multiplication

C Lysogeny

D Penetration

Review Detailed Answer

Correct Answer: Penetration

Which of the following disease results in Paralysis due to viral attack on C.N.S:

A Measles

B Herpes simplex

C Hepatitis

D Polio

Review Detailed Answer

Correct Answer: Polio

In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________?

A Lysis

B Lysogeny

C Induction

D Adsorption

Review Detailed Answer

Correct Answer: Induction

An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________?

A DNAase

B RNAase

C DNA polymerase

D Reverse Transcriptase

Review Detailed Answer

Correct Answer: Reverse Transcriptase

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Biology 1525 MCQs [All-Courses]

All Topics 1525

All Topics 1525

Pepsinogen is produced from__________?

In the lytic cycle of bacteriophage the host DNA is__________?

Which of the following is an RNA virus:

Temperate phage may exist as_____________?

In the Lysogenic cycle the DNA of the bacteriophage__________________?

Tobacco mosaic virus is__________?

In life cycle of bacteriophage which step occur after attachment of prophage with the receptor site of the bacterial cell wall_____________?

Which of the following disease results in Paralysis due to viral attack on C.N.S:

In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________?

An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________?