Assertion: Filarial worm is transmitted to humans by Culex mosquito.
Reason: Culex prefers to breed in fresh water.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
C.
If assertion is true but reason is false.
Wuchereria (W.bancrofti & W.malayi), the filarial worms cause a slowly developing chronic inflammation of the organs in which they live for many years, usually the lymphatic vessels of the lower limbs, and the disease is called filariasis. The pathogen spread from one human being to another through mosquitoes like Culex and to a Jess extent by Anopheles and Aedes. The parasite resides in lymph vessels, connective tissues and mesentery. It is manifestated by lymphoedema accompanied by thickening of subcutaneous tissues and skin so that there is permanent swelling mostly of feet, legs, thighs, scrotal sacs, breast etc. In Culex and other mosquitoes females are blood sucking while males suck juices of flowers and fruits. Female Culex carries filarial worm from one person to another. It prefers to breed in dirty water near human. habitation.
Which of the following is not a character of cancerous cells in our body
Contact inhibition
Neoplasia
Metastasis
Inability for differentiation
Identify the give figure and select the correct option
Neutrophil- phagocytic cell which destroy foreign organisms entering the body.
Eosinophil- their number increases during allergic infection.
Lymphocyte - small sized non-motile and non-phagocytic.
Monocyte - motile and phagocytic in nature.
Assertion: AIDS is caused by the HIV, a retro-virus.
Reason: Retroviruses have RNA genome.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Which one of the following immune system components does not correctly match with its respective role
Interferons - secreted by virus-infected cells and protect non-infected cells from further viral infection
B-lymphocytes-produces antibodies in response to pathogens into blood to fight with them
Macrophages-mucus secreting cells that trap microbes entering in the body
IgA-present in colostrum in early days of lactation and protect infant from diseases
Choose the correctly matched pair from the following.
Gonorrhoea, hepatitis B- sexually transmitted diseases
AIDS, gonorrhoea - viral infection
Diphtheria, ringworm - fungal infection
Diphtheria, tuberculosis - protozoan infection
Select the option having all the correct characteristics.
Structure Percentage Function
Structure Percentage Function
Structure Percentage Function
Structure Percentage Function
Sexual stage (gametocytes) of Plasmodium occurs in
Salivary glands of mosquito
Human RBC
Intestine of mosquito
Human liver
Assertion: AIDS and hepatitis B are sexually transmitted diseases.
Reason: There is no permanent cure for both of them
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
