Biology Microbiology and Biotechnology 1

Question 1

What is the primary purpose of antibiotics?

Accepted Answer

To kill or inhibit bacteria

Answer

To kill viruses

Answer

To boost the immune system

Answer

To provide energy to cells

Question 2

Which genetic engineering tool allows precise editing of DNA sequences?

Accepted Answer

CRISPR-Cas9

Answer

Polymerase Chain Reaction (PCR)

Answer

Gel Electrophoresis

Answer

Southern Blot

Question 3

What is the main difference between bacteria and viruses?

Accepted Answer

Bacteria reproduce independently; viruses require a host cell.

Answer

Bacteria are non-living; viruses are living.

Answer

Bacteria have cell walls; viruses do not.

Answer

Bacteria can cause diseases; viruses cannot.

Question 4

What is the purpose of a vaccine?

Accepted Answer

To stimulate the immune system to recognize and fight pathogens

Answer

To treat infections caused by pathogens

Answer

To boost the body’s production of white blood cells

Answer

To kill harmful microorganisms directly

Question 5

Which microorganism is used in the production of bread and alcoholic beverages?

Accepted Answer

Yeast

Answer

Bacteria

Answer

Algae

Answer

Virus