Tetanus and typhoid are caused by bacteria. Whooping cough is caused by bacteria. Sleeping sickness is caused by parasitic flees. Syphilis is caused by bacteria while AIDS is final stage of HIV viral disease. Measles and Rabies are caused by virus.

Correct Option: D

Tetanus and typhoid are caused by bacteria. Whooping cough is caused by bacteria. Sleeping sickness is caused by parasitic flees. Syphilis is caused by bacteria while AIDS is final stage of HIV viral disease. Measles and Rabies are caused by virus.

Diptheria is a highly infectious disease caused by Cornybacterium diptheriae which liberates soluble toxin. The toxin affects nerves and cause double vision, difficulty in swallowing and paralysis of breathing muscles and limbs.

Correct Option: A

Diptheria is a highly infectious disease caused by Cornybacterium diptheriae which liberates soluble toxin. The toxin affects nerves and cause double vision, difficulty in swallowing and paralysis of breathing muscles and limbs.

Botulism is caused by the ingestion of food containing the toxin of Clostridium botulinum. Before the introduction of a strict canning code, the food canning industry was responsible for many deaths each year from botulism (Food poisoning). Botulism is a rare but serious paralytic illness caused by a nerve toxin that is produced by the bacterium Clostridium botulinum. This bacterium produces an exotoxin which is highly toxic for the synaptic ends of the nerves where it blocks the release of acetylcholine which is a chemical necessary for the transmission of nerve impulse across the synapses.

Correct Option: B

Botulism is caused by the ingestion of food containing the toxin of Clostridium botulinum. Before the introduction of a strict canning code, the food canning industry was responsible for many deaths each year from botulism (Food poisoning). Botulism is a rare but serious paralytic illness caused by a nerve toxin that is produced by the bacterium Clostridium botulinum. This bacterium produces an exotoxin which is highly toxic for the synaptic ends of the nerves where it blocks the release of acetylcholine which is a chemical necessary for the transmission of nerve impulse across the synapses.

Motile zygote of Plasmodium occurs in gut of female Anopheles. Zygote formed in stomach of mosquito about 9 to 10 days after sucking the blood of an infected human. Anopheles receives RBCs containing different stages of erthyrocytic cycle, including gametocyte. In its gut, all stages except the gametocytes are digested. The gametocytes remain unaffected by digestive enzymes of the mosquito, hatch out from the RBCs into the lumen of mosquito’s stomach and form sperm and ovum by gametogenesis. Syngamy or fusion of male and female gamete.

Correct Option: A

Motile zygote of Plasmodium occurs in gut of female Anopheles. Zygote formed in stomach of mosquito about 9 to 10 days after sucking the blood of an infected human. Anopheles receives RBCs containing different stages of erthyrocytic cycle, including gametocyte. In its gut, all stages except the gametocytes are digested. The gametocytes remain unaffected by digestive enzymes of the mosquito, hatch out from the RBCs into the lumen of mosquito’s stomach and form sperm and ovum by gametogenesis. Syngamy or fusion of male and female gamete.

Widal test is carried out to test typhoid fever caused by Salmonella typhii bacteria. Typhoid vaccine is available.

Correct Option: D

Widal test is carried out to test typhoid fever caused by Salmonella typhii bacteria. Typhoid vaccine is available.