ICSE XII/MCQ Questions for Class 12 Biology Set 4 Sample Test,Sample questions

Question:
AIDS caused by:

1. By fungus

2.By Virus

3.By Bacteria

4. By Helminthes


Question:
AIDS occur by which cause?

1. Reduction of T-Helper cells

2.Reduction of Killer T-cells

3. Auto immune

4. Less production of interferon


Question:
Alcohol is the most socially accepted narcotic drug. Excessive consumption of alcohol leads to:

1. Loss of memory

2. Live cirrhosis

3.State of hellucination

4. Suppresion of brain function


Question:
Antigen-binding site in an antibody, is found between:

1. Two light chains

2. Two heavy chains

3.One heavy and one light chain

4.Either between two light chains or between one heavy and one light chain


Question:
Antigens are present:

1.Inside nucleus

2. One the cell surface

3.Inside cytoplasm

4.On nuclear membrane


Question:
As per Neo-Darwinism, which is mainly responsible for evolution?

1. Mutation

2.Natural drift

3. Both of these

4.All of these


Question:
BCG vaccine is a preventive measure against:

1. Tuberculosis

2. Typhoid

3. AIDS

4. Cholera


Question:
Book ‘Philosophique Zoologique’ was written by:

1.Lamarck

2. Mendel

3. Darwin

4. Hugo-devries


Question:
By the plant of which family Heroin is obtained?

1. Leguminaceae

2. Papa Veraceae

3. Liliaece

4. Solanaceae


Question:
Caffein, Amphetamine and coceins are:

1. Pain Killer

2.Tranquillizer

3.Hallucination

4. Stimulant


Question:
Coiling of DNA duplex is:

1.Left-handed

2. Right-handed

3.Parallel

4.All of these


Question:
Common cold is caused by:

1.Retro virus

2. Phage virus

3. Rhino virus

4.Sendai virus


Question:
Disease associated with secretion of toxin is:

1. TB

2. AIDS

3. Tetanus

4.Food Poisoning


Question:
Dispersal of population depends on:

1. On immigration

2. On Emigration

3.On Migration

4. All of these


Question:
DNA double helix model was given by:

1. Knoll and Ruska

2. Khorana

3. Watson and Crick

4. Priestley


Question:
DNA transcription, if nucleotide sequence of DNA strand, that is being coded in ATACG, then the nucleotide sequence in m-RNA would be:

1. UATGC

2.TATGC

3. TCTGG

4. UAUGC


Question:
Evolutionary history of an organism is known as:

1. Ontogeny

2. Phytogeny

3.Ancestry

4.Palaentolgy


Question:
Following is Hallucinator

1.LSD

2.Heroin

3.Cocein

4.Morphin


Question:
Following which is STD:

1.Typhoid

2.Cholera

3. Malaria

4. Syphilis


Question:
Gonorrhoea is caused by:

1.By Treponema pallidium

2.By Entamoeba gingivalis

3.By Mycobacterium taprae

4.By Neisseria gonorrhoeae


Question:
Hardy-Weinberg principle explains :

1. Chromosomal

2. Genetic drift

3. Genetic equilibrium

4. All of these


Question:
Heroin is the form of :

1.Aesthetic

2. Hallucination

3.Irritation

4.All of the above


Question:
Immune deficiency symdrome is caused by:

1.Defected liver

2. Defected thymus

3.AIDS Virus

4.Loss of Immune system


Question:
In a m-RNA, how many nucleotide sequence code for amino acid:

1. One

2.Two

3. Three

4. Four


Question:
Inprokaryotic translation, GTP molecule required in at:

1. Formation of formyl-met-f-RNA

2. Joining of 30S sub-unit of ribosome with n-RNA

3. Joining of 30S m-RNA on Formyl-met-f-RNA

4. Joining of 50S subunit of ribosome with initiation complex


Question:
Kala-azar is transmitted by:

1.By Sand fly

2. By Tsetse fly

3. By House fly

4. By Mosquitoes


Question:
Man in the life-cycle of plasmodium is:

1. Primary host

2. Secondary host

3. Intemediate host

4. None of these


Question:
Memory cells are formed from:

1.Monocytes

2. Eosinophils

3. Neutrophils

4. Lymphocytes


Question:
Missing link in evolution is:

1.Pheretima

2.Limulus

3.Peripatus

4. Archaeopterys


Question:
Nitrogenous bases present in DNA:

1.Adenine, guanine, cytosine, thymine

2. Adenine, guanine, cytosine, uracil

3. Adenine, thymine, uracil

4.Guanine, uracil


Question:
Okazaki fregments is:

1. RNA primer

2.small segments of DNA on leading stand

3. Small segments of DNA on lagging stand

4.None of these


Question:
One of these is not prepared directly from DNA

1. m-RNA

2. f-RNA

3.r-RNA

4. Protein


Question:
Opiates are obtained from

1. Thea sinesis

2. Coffea Arabica

3. Oryzasativa

4.Papaver Seminiferum


Question:
Opium is:

1.Hemp

2. Charas

3.Heroin

4. Nicotin


Question:
Pain-killer drugs:

1.Makes Tissue

2.Relieve from pain

3. Relieve from tired

4.Pain creater


Question:
PCR is test for:

1.HIV

2. Cancer

3.Tuberculosis

4.Cholera


Question:
RNA from which has clover leaf model:

1.f-RNA

2. r-RNA

3. hn-RNA

4. m-RNA


Question:
The biogenetic law of Haeckel is:

1. Ominis vivum-e-eellula

2. Omminis cellula-e-cellula

3.Ontogeny repeats phytogeny

4. Phytogeny repeats ontogeny


Question:
The disease, tetanus also known as:

1.Shingles

2.Gangrene

3. Lockjaw

4.Whooping cough


Question:
Theory of Pangenesis was given by:

1. Darwin

2. Lamarck

3. Weismann

4.DeVries


Question:
Transposons occur in:

1. In Eukaryotes

2. In Prokaryotes

3. In both (a) and (b)

4. None of these


Question:
Which is not component of lac operon:

1. Primer gene

2.Promoter gene

3. constructive gene

4. Regulator gene


Question:
Which of the following is the cancer of blood?

1.Sarcoma

2. Lymphoms

3.Leukemia

4. None of these


Question:
Which one of the following phenomenon supports Darwin’s concept of natural selection in organic evolution?

1.Development of transgenic animals

2.Production of‘Dolly the sheep’ by cloning

3. Prevalence of pesticide resistant insects

4. Development of organs from ‘Stem cells’ for organ transplantation


Question:
Which organ of body is most affected by excessive intake of alcohol?

1.Lungs

2. Liver

3.Stomach

4.Spleen


Question:
Which part of poppy plant yields opium:

1. Latex from unripe capsules

2.Dried roots

3.Dried leaves

4. Dired seeds


Question:
Widal test is done to confirm:

1. Malaria

2. Typhoid

3.AIDS

4.Cancer


Question:
Wings of Butterfly and birds are:

1. Vestigial organs

2. Analogous organs

3. Homologous organs

4. Both (a) and (b)


Question:
World AIDS day is:

1.1 May

2. 20 December

3. 1 June

4. 1 December


Question:
Wuchereria bancrofti causes filaria in human being. It is of which group:

1.Protozoa

2. Bacteria

3.Virus

4. Helminth


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