Q. No.A highly effective recombinant vaccine is available for the prevention of:
1. Poliomyelitis 2. Covid-19 3. HIV infection 4. Hepatitis B
What is common to the diseases given in the box?
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Type 1 diabetes, Graves' disease, Multiple sclerosis, Psoriasis, Rheumatoid arthritis, Myasthenia gravis, and Systemic lupus erythematosus |
| 1. | They are congenital diseases |
| 2. | They are caused by multiple mutational events |
| 3. | They result from the loss of capability of the immune system to distinguish between self and non-self |
| 4. | They are completely curable |
Consuming water contaminated with toxic levels of cadmium can cause:
| 1. | Methemoglobinemia | Black foot disease | |
| 3. | Itai – itai | Minamata disease |
Trypanosomabrucei, the pathogen responsible for causing African sleeping sickness in humans, is a:
| 1. | Sporozoan | 2. | Heterotrophic eubacteria |
| 3. | Flagellated protozoan | 3. | Pathogenic fungus |
Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Identify the incorrect statement regarding the virus/disease:
| 1. | The virus is a single-stranded RNA retrovirus. |
| 2. | Transmission of the virus can occur by direct contact with infected people and indirect contact with surfaces in the immediate environment or with objects used on the infected person. |
| 3. | Common symptoms include fever, cough, and shortness of breath. |
| 4. | Hand washing, face masks, quarantine, social distancing are important in the control of the pandemic as no cure or vaccine is available yet. |
Antiserum provides:
| 1. | natural active acquired immunity |
| 2. | artificial active acquired immunity |
| 3. | natural passive acquired immunity |
| 4. | artificial passive acquired immunity |
CD4 proteins on a helper T cell are non-functional. In such a situation, these T helper cells will not be able to:
| 1. | lyse tumor cells. |
| 2. | stimulate a cytotoxic T cell. |
| 3. | interact with a class I MHC-antigen complex. |
| 4. | interact with a class II MHC-antigen complex. |
Perceptions, in a conscious and awake state in the absence of external stimuli which have qualities of real perception, are called as:
| 1. | Hallucinations | 2. | Delusions |
| 3. | Dreams | 4. | Nightmares |
The diagram shows the signet ring stage of the malarial parasite in the human RBC. What stage of the life cycle of Plasmodium vivax does it conform to?
| 1. | Sporozoite | 2. | Early trophozoite |
| 3. | Late trophozoite | 4. | Merozoite |
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