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NCERT - Health and Diseases Questions and Answers of Class 12 Biology | GkSeries

Free Download as PDF of the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. We provide all important questions and answers from chapter Health and Diseases of Biology.
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(1) Which person is suffering from disease according to given sentences ?
[1] Mahesh walks slowly & become tired
[2] There is appearance of scaly lesions on skin of naresh.
[3] Paresh is suffering from vomiting
[4] All of them suffer from disease
Answer: All of them suffer from disease
(2) From which kind of host life cycle of plasmodium passes ?
[1] Male of Human & of Anopheles mosquito.
[2] Male of Human & Male of Anopheles mosquito
[3] Human & Female Anopheles mosquito.
[4] Human & Male Anopheles mosquito.
Answer: Human & Male Anopheles mosquito.
(3) At Which time interferon is secreted ?
[1] When lymphocytes become active
[2] When our body cell's are infected by virus then that cell's secret this chemical.
[3] When serotonin become active
[4] When antibody reacts with antigen in our body.
Answer: When our body cell's are infected by virus then that cell's secret this chemical.
(4) Which is the process of biological control,which is for controlling to spread the diseare caused by mosquitoes.?
[1] Masquito net
[2] Spreading & chemicals
[3] Fish like Gambusia
[4] Net in doors & windows
Answer: Fish like Gambusia
(5) Which one is odd ?
[1] Malaria
[2] Pneumenia
[3] HIV
[4] Typhoid
Answer: HIV
(6) According to their production which one is odd ?
[1] Cannabinoids
[2] Marjuana
[3] Ganja
[4] Charas
Answer: Marjuana
(7) Mark odd one ?
[1] Mucus
[2] Saliva
[3] Tears
[4] Acid
Answer: Mucus
(8) Mark odd one ?
[1] Chicken gunia
[2] Elephantiasis
[3] Diphtheria
[4] Malaria
Answer: Diphtheria
(9) What is called disease according to Oxford english dictionary ?
[1] The bad performance of body or body parts with some particular symptom
[2] Body or body's parts that obstructs the functioning of them
[3] Any physical or actional change from normal condition
[4] Disease spread from one person to another
Answer: Disease spread from one person to another
(10) In which disease prepared antibodies are entered ?
[1] Chicken pox
[2] T.B
[3] Cold
[4] Rabies
Answer: Rabies
(11) Genetic material of virus in macrophege is regenerated in DNA by which enyme ?
[1] Transcriptase
[2] RNA polymerase
[3] Reverse Transcriptasce
[4] DNA polymeane
Answer: Reverse Transcriptasce
(12) From which plant and from which part of that plant Cocain drug is obtained ?
[1] Ergot-fruit
[2] Erythroxylum coca-leaf
[3] Papaver somniferum-leaf
[4] Erythroxylum coca-Flower
Answer: Erythroxylum coca-leaf
(13) What is there as a genetic material in HIV in addition to protein layer ?
[1] The chains containing DNA
[2] One chains containing DNA
[3] Two chains containing RNA
[4] One chains containing RNA
Answer: One chains containing RNA
(14) Which disease is spread by mosquito but does not occurs by virus ?
[1] Meningities
[2] Dengue fever
[3] Yellow fever
[4] Filarisis
Answer: Meningities
(15) By which AIDS spread ?
[1] Bacterium
[2] TMV
[3] Blood Cancer
[4] T-Cell leukemia virus of Human
Answer: T-Cell leukemia virus of Human

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