Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- Triglyceride is also known as_____________? 

a. Natural lipid  

b. Neutral lipid  

c. Neutral wax  

d. All of these 


Answer- Neutral lipid


Que- Carbon commonly combines with______________? 

a. H  

b. N & O  

c. P & S  

d. All of these 


Answer- All of these


Que- The sequence of 3 bases on tRNA which is complementary to condon of mRNA is called____________? 

a. Gene  

b. Anticodon  

c. Code  

d. Codon 


Answer- Anticodon


Que- The survival of an animal depends upon its ability to take some from its environment____________? 

a. Chemicals  

b. Hydrocarbons  

c. Organic molecules  

d. Inorganic molecules 


Answer- Organic molecules


Que- In humans the number of tetrads formed during mitosis is___________? 

a. 23.0 

b. 46.0 

c. 0.0 

d. 4.0 


Answer- 0.0


Que- Non polar organic molecules are ___________ in water? 

a. Soluble  

b. Insoluble  

c. Partially soluble  

d. Depends upon condition 


Answer- Insoluble


Que- Interconversion of carbohydrates proteins and lipids in living cells are an example of____________? 

a. Coordinated catabolic activities  

b. Coordinated anabolic activities  

c. Both A and B  

d. Any one 


Answer- Both A and B


Que- Which one of the following is correct sequence of stages of prophase 1 of meiosis 

a. Diakinesis diplotene pachytene leptotene zygotene  

b. Zygotene leptotene pachytene diplotene diakinesis  

c. Leptotene zygotene pachytene diplotene diakinesis  

d. Pachytene leptotene diplotene zygotene diakinesis 


Answer- Leptotene zygotene pachytene diplotene diakinesis


Que- Which one of the following syndrome is the result of meiotic non dysjunction? 

a. Klinefelters syndrome  

b. Turners syndrome  

c. Downs syndrome  

d. All of these 


Answer- All of these


Que- Which one of the following stage preceeds mitosis during cell cycle? 

a. G1 phase  

b. S phase  

c. G2 phase  

d. M phase 


Answer- G2 phase


Que- Most of the cellular secretions are ________ in nature? 

a. Glycolipids  

b. Glycoproteins  

c. Nucleohistones  

d. Proteins 


Answer- Glycoproteins


Que- The red green color blindness is sex linked recessive condition in man. A father with normal vision and a color blind mother world expect to produce. 

a. Color blind sons and daughter with normal vision  

b. Sons with normal vision and color blind daughters  

c. Color blind sons colour blind daughters and daughters with normal vision  

d. Sons with normal vision colour blind daughter and daughters with normal vision 


Answer- Color blind sons and daughter with normal vision


Que- Genes will not be found in gene pairs in the_____________? 

a. Muscle cell of worm  

b. Uterine cells of dog  

c. Sperm cells of frog  

d. Guard cells of leaf 


Answer- Sperm cells of frog


Que- rRNA constitutes ____________% of the total cellular RNA? 

a. 3-4 %  

b. 10-20%  

c. 0.8 

d. 0.9 


Answer- 0.8


Que- A genome is___________? 

a. Appearance of an individual  

b. Genetic basis of few characters  

c. Full set of genes of an individual  

d. All of these 


Answer- Full set of genes of an individual


Que- Which conjegated molecules play important role in gene expression___________? 

a. Glycolipids  

b. Glycoproteins  

c. Nucleohistones  

d. None of these 


Answer- Nucleohistones


Que- There are mainly __________ types of tRNA? 

a. 170.0 

b. 20.0 

c. 25.0 

d. 15.0 


Answer- 20.0


Que- The discease in which transmembrane carrier for the chloride ion is not produced is__________? 

a. Hyperchloesterolemia  

b. Cystic fibrosis  

c. Severe combined immunodeficiency syndrome  

d. AIDS 


Answer- Cystic fibrosis


Que- The one which is a weed killer is___________? 

a. IAA  

b. NAA  

c. 2 4-D  

d. GA 


Answer- 2 4-D


Que- Five kingdom classification was proposed by_____________? 

a. Carlous Linnaeus  

b. E-Chatton  

c. Robert Whittaker  

d. Lynn Margulis and Karlene Schwartz 


Answer- Robert Whittaker


Que- Organisms of which of the following kingdom have absorptive mode of nutrition______________? 

a. Prokaryotae  

b. Protoctista  

c. Animalia  

d. Fungi 


Answer- Fungi


Que- Which of the Euglenas (a Protoctista) character resembles that of animals______________? 

a. They can move  

b. They lack cell wall  

c. They do not have chlorophyll  

d. Both a and b 


Answer- Both a and b


Que- The one which can break open a plasmid ring is__________? 

a. Ligase enzyme  

b. Primase enzyme  

c. Restriction endonuclease  

d. ATP-ase enzyme 


Answer- Ligase enzyme


Que- According to Lamarch evolution occurred as the result of__________? 

a. Natural selection  

b. The theory of recapitulation  

c. Inheritance of acquired characters  

d. Over production 


Answer- Inheritance of acquired characters


Que- Allium cepa is the scientific name of______________? 

a. Onion  

b. Amaltas  

c. Potato  

d. Tomato 


Answer- Onion


Que- Which of the following category is most general with its members lest resembling with each other than the other categries_____________? 

a. Species  

b. Genus  

c. Family  

d. Order 


Answer- Order


Que- The first eukarotes appeared about __________ years ago? 

a. 1.5 billion  

b. 2.5 billion  

c. 3.5 billion  

d. 4.5 billion 


Answer- 1.5 billion


Que- Those organisms which can prepare their own food from simple inorganic material and can store energy are called___________? 

a. Autotrophs  

b. Heterotrophs  

c. Procariotique  

d. Eu-cariotique 


Answer- Autotrophs


Que- Solanum tuberosum is a scientific name of___________? 

a. Onion  

b. Amaltas  

c. Potato  

d. Tomato 


Answer- Potato


Que- The structure which has been formed or modified from gill pouches in humans is___________? 

a. Gills  

b. Eustachian tube  

c. Middle ear  

d. Lungs 


Answer- Eustachian tube


Que- Scurvy and beri – beri and caused by the deficiency of___________? 

a. Vitamin B and C  

b. Vitamin B and D  

c. Vitamin C and B   

d. Vitamin A and B 


Answer- Vitamin C and B 


Que- The word which E-Chatton suggested for bacteria and blue green algae was_____________? 

a. Autotrophs  

b. Heterotrophs  

c. Pro-cariotique  

d. Eu-cariotique 


Answer- Pro-cariotique


Que- The greatest diversity of animals in the lake is found in which one of the following zones? 

a. Limmnetic zone  

b. Littoral zone  

c. Profundal zone  

d. None of these 


Answer- Littoral zone


Que- So far over _____________ number of species of animals are known? 

a. million  

b. 1 million  

c. 1.0 

d. 2 million 


Answer- 1.0


Que- What is the characteristic feature of consumers? 

a. Autotroph  

b. Heterotroph  

c. Parasite  

d. Saprophyte 


Answer- Heterotroph


Que- Which of the following organisms have Chitin as a major structural component of their cell wall________________? 

a. Prokaryotae  

b. Protoctista  

c. Plantae  

d. Fungi 


Answer- Fungi


Que- All of the following are involved in nitrification except 

a. Nitrobacter  

b. Nitrosomonas  

c. Rhizohium  

d. All of these 


Answer- Rhizohium


Que- DNA or RNA of viruses is enclosed in _______________ coat? 

a. Protein  

b. Carbohydrate  

c. Lipid  

d. DNA 


Answer- Protein


Que- In most ecosystems the greatest amount of energy flows through the____________? 

a. Secondary consumers  

b. Herbivores  

c. Carnivores  

d. Decomposers 


Answer- Herbivores


Que- Which of the following relationship is NOT an example of symbiosis? 

a. Rhizobium and leguminous plants  

b. Marchantia sporophyte and gametophyte  

c. Algae and fungi in a lichen  

d. Mycorrhizal fungi and tree roots 


Answer- Marchantia sporophyte and gametophyte


Que- Other name for Kingdom monera is_______________? 

a. Protoctista  

b. Prokaryotae  

c. Archae  

d. None of these 


Answer- Prokaryotae


Que- Animals with greatest number of similarities are grouped together in a/an___________? 

a. Phylum  

b. Family  

c. Genus  

d. Order 


Answer- Genus


Que- Amoeba belongs to which kingdom______________? 

a. Prokaryotae  

b. Plantae  

c. Monera  

d. Protista 


Answer- Protista


Que- Competition between species will be greatest if they attempt to occupy the same___________? 

a. Ecosystem  

b. Community  

c. Habitat  

d. Niche 


Answer- Niche


Que- The word virus is derived from Latin word venome meaning____________? 

a. Sweet fluid  

b. Sore Fluid  

c. Poisonous Fluid  

d. Salty Fluid 


Answer- Poisonous Fluid


Que- The one which is present in all aerobic species is _________? 

a. Cytohrome c  

b. Cytochrome a  

c. Cytochrome a3  

d. Cytochrome b 


Answer- Cytohrome c


Que- The size of smallest virus is______________? 

a. 10 nm  

b. 20 nm  

c. 30 nm  

d. 40 nm 


Answer- 20 nm


Que- What percentage of light reaching the earth is used in photosynthesis? 

a. 0.25 

b. 0.1 

c. 0.05 

d. 0.01 


Answer- 0.01


Que- Viruses are __________ smaller than bacteria? 

a. 10 – 100 times  

b. 10 – 1000 times  

c. 100 – 1000 times  

d. 1000 – 10000 times 


Answer- 10 – 1000 times


Que- Kangaroo rat most probably would be found in___________? 

a. Tropical rain forest  

b. Tundra  

c. Grass land  

d. Desert 


Answer- Desert


Que- Vaccine Was discovered by______________? 

a. Louis Pasteur  

b. Edward Jennar  

c. Ivanowski  

d. Stanely 


Answer- Edward Jennar


Que- The name Bacteriophage was coined by____________? 

a. Charles Chamberland  

b. Ivanowski  

c. Twort  

d. D Herelle 


Answer- D Herelle


Que- Protein subunits of capsid is called the capsomeres is a characteristic of each virus. Their number in Herpes virus is__________? 

a. 100.0 

b. 152.0 

c. 162.0 

d. 172.0 


Answer- 162.0


Que- Which of the statement about viruses is incorrect___________________? 

a. We can not grow them in laboratories on artificial medias  

b. They are obligate intracellular parasite.  

c. They can synthesize their nucleic acid  

d. They are resistant to most of antibiotic treatment 


Answer- They can synthesize their nucleic acid


Que- A virion is______________? 

a. Virus  

b. Viral protein  

c. Viral lysozyme  

d. Viral gene 


Answer- Virus


Que- For which of the following no preventive vaccine is available? 

a. HAV  

b. HBV  

c. HCV  

d. HEV 


Answer- HCV


Que- Which one of the following specially result in chronic liver disease leading to hepatic failure: 

a. HAV  

b. HBV  

c. HCV  

d. HEV 


Answer- HCV


Que- Protein coat the capsid of adenovirus is________________? 

a. Surrounded by genome  

b. Surrounding genome  

c. Surrounding the envelope  

d. Both B and C 


Answer- Surrounding genome


Que- Mode of transmission of hepatitis A is__________? 

a. Serum  

b. Faeco-oral  

c. Sexual contact  

d. All of these 


Answer- Faeco-oral


Que- Attachment of the bacteriophage with the receptor site on the bacterial cell wall involves_______________? 

a. Strong covalent bond between virion and the receptor site.  

b. Week chemical unior between them  

c. Both A and B depending upon the phage  

d. None of these 


Answer- Week chemical unior between them


Que- Which of the following statement about AIDS is incorrect: 

a. is a host specific disease  

b. An infected mother cannot pass the virus to her baby.  

c. Results in enlargement of lymph nodes  

d. Can be prevented. 


Answer- An infected mother cannot pass the virus to her baby.


Que- Bacteriopahage that infect E. coli are called_____________? 

a. M type  

b. N type  

c. T type  

d. S type 


Answer- T type


Que- Complex symptoms like severe pneumonia vascular tumor sudden weight loss swollen lymph nodes and immune deficiency are features of: 

a. Polio  

b. Hepatitis  

c. AIDS  

d. HIV 


Answer- AIDS


Que- An isolated virus is not considered living since it________________? 

a. Separates in to two inner parts  

b. Can not metabolize  

c. Rapidly looses its Genome chemical inert  

d. Is coated with an air tight shield 


Answer- Can not metabolize


Que- Which of the following is the smallest known virus: 

a. Hepatitis virus  

b. Retrovirus  

c. Polio virus  

d. Pox virus 


Answer- Polio virus


Que- The agent of controversial nature causing mad cow infection is_____________? 

a. Bacteria  

b. Cowpox Virus  

c. Adenovirus  

d. Prion 


Answer- Prion


Que- Which of the following virus has special affiliations with the tumor production: 

a. Hepatitis virus  

b. Retrovirus  

c. Polio virus  

d. Pox virus 


Answer- Retrovirus


Que- Which of the following is incorrect for the lysogenic cycle in life cycle of bacteriophage_____________? 

a. Phage when gets incorporated with the bacterial chromosome is called prophage  

b. The bacterium continues to live and reproduce normally  

c. Lysogenic bacteria may get infected by the related phage  

d. The cycle may convert into lytic type resulting from environmental exposure 


Answer- Lysogenic bacteria may get infected by the related phage


Que- An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________? 

a. DNAase  

b. RNAase  

c. DNA polymerase  

d. Reverse Transcriptase 


Answer- Reverse Transcriptase


Que- In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________? 

a. Lysis  

b. Lysogeny  

c. Induction  

d. Adsorption 


Answer- Induction


Que- In life cycle of bacteriophage which step occur after attachment of prophage with the receptor site of the bacterial cell wall_____________? 

a. Absorption  

b. Multiplication  

c. Lysogeny  

d. Penetration 


Answer- Penetration


Que- Tobacco mosaic virus is__________? 

a. Spherical  

b. Rod Shaped  

c. Tadpole like  

d. Hexagonal 


Answer- Rod Shaped


Que- In the Lysogenic cycle the DNA of the bacteriophage__________________? 

a. Joins the bacterial chromosomes  

b. Attaches to the inner surface of the host membrane  

c. Is immediately degraded when enters the host  

d. Goes directly to host ribosomes for translation 


Answer- Joins the bacterial chromosomes


Que- Temperate phage may exist as_____________? 

a. Prophage  

b. Capsid  

c. Viron  

d. Retrovirus 


Answer- Prophage


Que- Which of the following is an RNA virus: 

a. Influenza virus  

b. Herpes virus  

c. HBV  

d. Pox virus 


Answer- Influenza virus


Que- In the lytic cycle of bacteriophage the host DNA is__________? 

a. Replicated  

b. Turn off by the protein coat.  

c. Digested into its nucleotides  

d. Turned on by the removal of the protein coat 


Answer- Digested into its nucleotides


Que- Pepsinogen is produced from__________? 

a. Mucous cells  

b. Parietal cells  

c. Zymogen cells  

d. All of these 


Answer- Zymogen cells


Que- Carbohydrates, fats & proteins are essential for_______________? 

a. Metabolic processes of an organism  

b. Providing energy  

c. Formation of sturctures  

d. All of these 


Answer- All of these


Que- Dipeptides into amino acids are are converted through_____________? 

a. Amino peptidase  

b. Erypsin  

c. Pepsin  

d. Trypsin 


Answer- Erypsin


Que- Magnesium is present in which of the following__________________? 

a. Cytochromes  

b. ATP  

c. Chlorophyll  

d. Haemoglobin 


Answer- Chlorophyll


Que- Deficiency of which of the following causes chlorosis__________________? 

a. Nitrogen  

b. Magnesium  

c. Iron  

d. Both A and B 


Answer- Both A and B


Que- Mastication is carried out by__________? 

a. Teeth  

b. Tongue  

c. Smooth muscles  

d. All of these 


Answer- Teeth


Que- Deficiency of K+ causes_____________? 

a. Stunted growth & strong chlorosis  

b. No electron transport chains  

c. Premature death of leaves  

d. Stunted growth of roots 


Answer- Premature death of leaves


Que- Masses of dilated tortuous veins in the anorectal mucosa are known as___________? 

a. Bulimia  

b. Ulcer  

c. Adipose tissue  

d. Hemorrhoids 


Answer- Hemorrhoids


Que- Puccinia is a parasitic___________? 

a. Plant  

b. Fungus  

c. Animal  

d. Algae 


Answer- Fungus


Que- An illness which largely affects girls usually just after the onset of puberty. 

a. Bulimia nervosa  

b. Obesity  

c. Anorexia nervosa  

d. None of these 


Answer- Anorexia nervosa


Que- Autotrophic organisms can exist in an exclusively ________________ environment? 

a. Organic  

b. Inorganic  

c. Wet  

d. Terrestrial 


Answer- Inorganic


Que- Loss of appetite due to the fear of becoming obese is____________? 

a. Anorexia nervosa  

b. Bulimia nervosa  

c. Piles  

d. Dyspepsia 


Answer- Anorexia nervosa


Que- Strong chlorosis is due to the deficiency of _____________ in plants? 

a. Magnesium  

b. Nitrogen  

c. Potassium  

d. Phosphorus 


Answer- Nitrogen


Que- Stunted growth of roots is due to the deficiency of____________in plants? 

a. Potassium  

b. Magnesium  

c. Phosphorus  

d. Iron. 


Answer- Phosphorus


Que- The liquid that escapes during defrosting frozen meat contains _____ bacteria? 

a. Campylobacter  

b. Nitrobacter  

c. Azobacter  

d. Salmonella 


Answer- Salmonella


Que- One of the commonest cause of food poisoning are the toxins produced by__________? 

a. Azobacter  

b. Nitrosomonas  

c. Campylobacter  

d. Nitrobacter 


Answer- Campylobacter


Que- Puccinia commonly destroys______________? 

a. Corn  

b. Tomato  

c. Dodder  

d. Wheat 


Answer- Wheat


Que- Nodules on roots of leguminous plants have __________ bacteria? 

a. Anaerobic  

b. Nitrogen fixing  

c. Nitrifying  

d. Ammonifying 


Answer- Nitrogen fixing


Que- Earthworm is an example of ______________feeder? 

a. Detritus  

b. Fluid  

c. Macrophageus  

d. Filter 


Answer- Detritus


Que- All of the insectivorous plants are true________________? 

a. Heterotrophs  

b. Autotrophes  

c. Carnivores  

d. Saprotrophs 


Answer- Autotrophes


Que- Of the following, which one has more variety of nutrition________________? 

a. Animals  

b. Bacteria  

c. Plants  

d. Fungi 


Answer- Animals


Que- Incomplete or imperfect digestion is known as________? 

a. Obesity  

b. Dyspepsia  

c. Anorexia nervous  

d. Bulimia nervosa 


Answer- Dyspepsia


Que- The leaf is bilobed with midrib between them. The plant is____________? 

a. Saraccnia  

b. Dionaea  

c. Pitcher plant  

d. None of these 


Answer- Dionaea


Que- Anus is surrounded by _____ types of muscles? 

a. 2.0 

b. 3.0 

c. 1.0 

d. 4.0 


Answer- 2.0

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