Communicable disease test

Question 1

How does the scientist make more plants with the same TMV resistant gene (1)

Answer 1

Through cloning or genetic engineering.

Question 1

How to test for glucose in the berries (2)

Answer 1

To test for glucose in berries:

1. Extract juice from berries.
2. Use a glucose test strip or reagent to detect glucose presence in the extracted juice.

Question 2

Why does a TMV infected plant have stunted growth (4)

Answer 2

TMV-infected plants experience stunted growth due to disrupted cell division, impaired nutrient transport, and cell damage caused by the virus.

Question 3

How does the monoclonal antibodies and fluorescent dye detect if the pathogens are present

Answer 3

Monoclonal antibodies bind to pathogens, and the fluorescent dye helps detect their presence.

Question 4

Except for Measles, what other diseases do the MMR vaccine cure (2):

Answer 4

Mumps, rubella

Question 5

Doctors use human lymphocytes to make monoclonal antibodies instead of mice lymphocytes. How does it treat disease better than mice.

Answer 5

Human lymphocytes for monoclonal antibodies work better than mice ones, minimizing immune risks in treating diseases.

Question 6

After immunisation from vaccines, how does the body prevent measles in the future (4)

Answer 6

1. Memory cells are created during immunization.
2. These cells “remember” the measles virus.
3. If exposed later, memory cells quickly recognize and respond.
4. Rapid response prevents widespread infection, providing immunity.