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Biology MCQs

Option A: Autotrophs

Option B: Heterotrophs

Option C: Procariotique

Option D: Eu-cariotique

Correct Answer: Autotrophs


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Option A: 1.5 billion

Option B: 2.5 billion

Option C: 3.5 billion

Option D: 4.5 billion

Correct Answer: 1.5 billion


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Option A: Species

Option B: Genus

Option C: Family

Option D: Order

Correct Answer: Order


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Option A: Natural selection

Option B: The theory of recapitulation

Option C: Inheritance of acquired characters

Option D: Over production

Correct Answer: Inheritance of acquired characters


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Option A: Onion

Option B: Amaltas

Option C: Potato

Option D: Tomato

Correct Answer: Onion


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Option A: Ligase enzyme

Option B: Primase enzyme

Option C: Restriction endonuclease

Option D: ATP-ase enzyme

Correct Answer: Ligase enzyme


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Option A: They can move

Option B: They lack cell wall

Option C: They do not have chlorophyll

Option D: Both a and b

Correct Answer: Both a and b


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Option A: Prokaryotae

Option B: Protoctista

Option C: Animalia

Option D: Fungi

Correct Answer: Fungi


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Option A: Carlous Linnaeus

Option B: E-Chatton

Option C: Robert Whittaker

Option D: Lynn Margulis and Karlene Schwartz

Correct Answer: Robert Whittaker


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Option A: IAA

Option B: NAA

Option C: 2 4-D

Option D: GA

Correct Answer: 2 4-D


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Option A: Hyperchloesterolemia

Option B: Cystic fibrosis

Option C: Severe combined immunodeficiency syndrome

Option D: AIDS

Correct Answer: Cystic fibrosis


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Option A: 170

Option B: 20

Option C: 25

Option D: 15

Correct Answer: 20


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Option A: Glycolipids

Option B: Glycoproteins

Option C: Nucleohistones

Option D: None of these

Correct Answer: Nucleohistones


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Option A: Appearance of an individual

Option B: Genetic basis of few characters

Option C: Full set of genes of an individual

Option D: All of these

Correct Answer: Full set of genes of an individual


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Option A: 3-4 %

Option B: 10-20%

Option C: 80%

Option D: 90%

Correct Answer: 80%


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Option A: Muscle cell of worm

Option B: Uterine cells of dog

Option C: Sperm cells of frog

Option D: Guard cells of leaf

Correct Answer: Sperm cells of frog


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Option A: Glycolipids

Option B: Glycoproteins

Option C: Nucleohistones

Option D: Proteins

Correct Answer: Glycoproteins


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Option A: G1 phase

Option B: S phase

Option C: G2 phase

Option D: M phase

Correct Answer: G2 phase


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Option A: Klinefelters syndrome

Option B: Turners syndrome

Option C: Downs syndrome

Option D: All of these

Correct Answer: All of these


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Option A: Diakinesis diplotene pachytene leptotene zygotene

Option B: Zygotene leptotene pachytene diplotene diakinesis

Option C: Leptotene zygotene pachytene diplotene diakinesis

Option D: Pachytene leptotene diplotene zygotene diakinesis

Correct Answer: Leptotene zygotene pachytene diplotene diakinesis


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Option A: Coordinated catabolic activities

Option B: Coordinated anabolic activities

Option C: Both A and B

Option D: Any one

Correct Answer: Both A and B


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Option A: Soluble

Option B: Insoluble

Option C: Partially soluble

Option D: Depends upon condition

Correct Answer: Insoluble


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Option A: 23

Option B: 46

Option C: 0

Option D: 4

Correct Answer: 0


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Option A: Chemicals

Option B: Hydrocarbons

Option C: Organic molecules

Option D: Inorganic molecules

Correct Answer: Organic molecules


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Option A: Gene

Option B: Anticodon

Option C: Code

Option D: Codon

Correct Answer: Anticodon


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Option A: H

Option B: N & O

Option C: P & S

Option D: All of these

Correct Answer: All of these


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Option A: Natural lipid

Option B: Neutral lipid

Option C: Neutral wax

Option D: All of these

Correct Answer: Neutral lipid


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Option A: It produces another DNA molecule

Option B: It produces mRNA

Option C: It is a semi conservation process

Option D: It occurs at surface of ribosomes

Correct Answer: It produces mRNA


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Option A: ADH

Option B: MSH

Option C: Oxytocin

Option D: Progesterone

Correct Answer: Oxytocin


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Option A: Trioses

Option B: Hexoses

Option C: Tetroses

Option D: Pentoses

Correct Answer: Tetroses


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Option A: Glyceraldehydes

Option B: Dihydroxy acetone

Option C: Both of these

Option D: None of these

Correct Answer: Both of these


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Option A: Neurula

Option B: Morula

Option C: Gastrula

Option D: Balastula

Correct Answer: Balastula


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Option A: Carbohydrates

Option B: Fatty acid

Option C: Water

Option D: Protein

Correct Answer: Water


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Option A: The centromere

Option B: Nuceleosome

Option C: Telomere

Option D: Histone

Correct Answer: Nuceleosome


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Option A: Photoperiodism

Option B: Thermotropism

Option C: Vernalisation

Option D: Thermoregulation

Correct Answer: Vernalisation


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Option A: 1 to 3 thousand

Option B: 3 to many thousand

Option C: 3 to 5 thousand

Option D: 5 to 9 thousand

Correct Answer: 3 to many thousand


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Option A: Sertoli cells

Option B: Germinal cell

Option C: Interstitial cells

Option D: Spermatocyte

Correct Answer: Interstitial cells


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Option A: Extracellular

Option B: Intracellular

Option C: Both of these

Option D: Glucose

Correct Answer: Extracellular


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Option A: Imprinting

Option B: Habituation

Option C: Latent learning

Option D: Insight learning

Correct Answer: Habituation


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Option A: CO

Option B: C-COO-C

Option C: HCOH

Option D: HOH

Correct Answer: CO


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Option A: Turgor movements

Option B: Growth movements

Option C: Tactic movements

Option D: Paratonic movments

Correct Answer: Turgor movements


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Option A: 3

Option B: 4

Option C: 5

Option D: 2

Correct Answer: 4


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Option A: Organic acid

Option B: Alcohol

Option C: Water

Option D: Sugar

Correct Answer: Alcohol


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Option A: Activation of sweat glands

Option B: Dilation of skin blood vessels

Option C: Panting

Option D: Thermogenesis

Correct Answer: Thermogenesis


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Option A: Sarcolemma

Option B: Sarcoplasm

Option C: Sarcoplasmic reticulum

Option D: Cytosol

Correct Answer: Sarcoplasm


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Option A: C-6

Option B: C-25

Option C: C-26

Option D: C-30

Correct Answer: C-25


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Option A: Protection against micro organisms

Option B: Temperature regulation

Option C: Excretion

Option D: All of these

Correct Answer: Protection against micro organisms


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Option A: Liquids

Option B: Gases

Option C: Solids

Option D: None of these

Correct Answer: Solids


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Option A: Superior vena cava

Option B: Inferior vena cava

Option C: Hepatic vein

Option D: Pulmonary vein

Correct Answer: Pulmonary vein


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Option A: Human beings

Option B: Influenza Virus

Option C: Hemophilus Influenza

Option D: None of these

Correct Answer: Hemophilus Influenza


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Option A: As an energy currency of the cell

Option B: As a coenzyme

Option C: Both a and b

Option D: None of these

Correct Answer: As an energy currency of the cell


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Option A: Burst

Option B: Be Killed

Option C: Be deplasmolysed

Option D: Show no change in it

Correct Answer: Be deplasmolysed


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Option A: Globular proteins

Option B: Fibrous Proteins

Option C: Both a and b

Option D: None of these

Correct Answer: Fibrous Proteins


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Option A: Humus

Option B: Detritus

Option C: Dead microscopic animals

Option D: Small crustaceans

Correct Answer: Small crustaceans


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Option A: Sponges

Option B: Annelida

Option C: Platyhelminthes

Option D: Aves

Correct Answer: Platyhelminthes


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Option A: H bonds

Option B: Disulphide Bond

Option C: Ionic bond

Option D: Hydrophobic bonds

Correct Answer: H bonds


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Option A: Release of CO2

Option B: Reduction of NAD

Option C: Formation of ATP

Option D: Production of ethanol from acetaldehyde

Correct Answer: Production of ethanol from acetaldehyde


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Option A: Haemoglobin

Option B: Pepsin

Option C: Fibrin

Option D: Insulin

Correct Answer: Fibrin


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Option A: Primary

Option B: Secondary

Option C: Tertiary

Option D: Quaternary

Correct Answer: Tertiary


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Option A: Chordate

Option B: Protochordate

Option C: Lower chordate

Option D: All of these

Correct Answer: All of these


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Option A: Algae

Option B: Bacteria

Option C: Cyanobacteria

Option D: Chlamydomonas

Correct Answer: Cyanobacteria


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Option A: Globular proteins

Option B: Fibrous Proteins

Option C: Both a and b

Option D: None of these

Correct Answer: Globular proteins


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Option A: Oxygen is stored

Option B: Food is stored

Option C: Sunlight is trapped

Option D: CO2 is stored.

Correct Answer: Sunlight is trapped


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Option A: 5

Option B: 10

Option C: 20

Option D: 25

Correct Answer: 10


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Option A: Lytic cycle

Option B: Lysogenic cycle

Option C: Both a & b

Option D: All of these

Correct Answer: Lytic cycle


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Option A: The pentose sugar in it is Ribose.

Option B: It contains Adenine Guanine Thymine and Cytosine

Option C: It is present in the nucleoli

Option D: It may be folded back on itself to give double helical characteristics.

Correct Answer: It contains Adenine Guanine Thymine and Cytosine


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Option A: Hydrophobic

Option B: Hydrophilic

Option C: Basic

Option D: None of these

Correct Answer: Hydrophobic


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Option A: Primary structure

Option B: Secondary structure

Option C: Tertiary structure

Option D: Quaternary structure

Correct Answer: Quaternary structure


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Option A: Amoebas

Option B: Zooflagellates

Option C: Ciliates

Option D: Apicomplexans

Correct Answer: Apicomplexans


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Option A: Primary structure

Option B: Secondary structure

Option C: Tertiary structure

Option D: Quaternary structure

Correct Answer: Primary structure


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Option A: 554

Option B: 564

Option C: 574

Option D: 584

Correct Answer: 574


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Option A: Phosphodiester linkage

Option B: Glycosidic bond

Option C: Peptide bond

Option D: Hydrogen bond

Correct Answer: Peptide bond


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Option A: Dorsal to oesophagus

Option B: Ventral to oesophagus

Option C: Lateral to oesophagus

Option D: None of these

Correct Answer: None of these


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Option A: 1

Option B: 2

Option C: 3

Option D: 4

Correct Answer: 2


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Option A: Protein

Option B: NaCl

Option C: Water

Option D: Cholesterol

Correct Answer: Water


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Option A: 20

Option B: 25

Option C: 150

Option D: 170

Correct Answer: 170


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Option A: 2-4 hours

Option B: 6-8 hours

Option C: 10-12 hours

Option D: 12-24 hours

Correct Answer: 12-24 hours


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Option A: C

Option B: S

Option C: H

Option D: N

Correct Answer: S


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Option A: 1

Option B: 2

Option C: 3

Option D: 6

Correct Answer: 3


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Option A: H

Option B: CH3

Option C: COOH

Option D: C = O

Correct Answer: H


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Option A: C55H70O5N4Mg

Option B: C55H72O6N4Mg

Option C: C55H70O6N4Mg

Option D: C55H72O5N4Mg

Correct Answer: C55H70O6N4Mg


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Option A: Fatty acids

Option B: Isoprenoid units

Option C: Amino acids

Option D: Nucleotides

Correct Answer: Amino acids


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Option A: Chordata

Option B: Hydra

Option C: Echinodermata

Option D: Hemichordata

Correct Answer: Echinodermata


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Option A: i & ii

Option B: iii & iv

Option C: i ii iii & iv

Option D: iv only

Correct Answer: iv only


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Option A: Ureter

Option B: Ovary

Option C: Lung

Option D: Testis

Correct Answer: Ovary


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Option A: 40%

Option B: 50%

Option C: 60%

Option D: 70%

Correct Answer: 50%


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Option A: All plants

Option B: All seed plants

Option C: Gymnosperms

Option D: Angiosperms

Correct Answer: Angiosperms


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Option A: Sori – Indusium

Option B: Arthrophytes – Jointed

Option C: Dichotomous – Vernation

Option D: Lycopods – Ground pries

Correct Answer: Dichotomous – Vernation


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Option A: Glucose

Option B: Starch

Option C: Sucrose

Option D: Glycogen

Correct Answer: Starch


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Option A: C-N link

Option B: C- O lind

Option C: N-H link

Option D: C-H link

Correct Answer: C-N link


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Option A: Acetic acid

Option B: Butyric acid

Option C: Palmitic acid

Option D: All have same

Correct Answer: Palmitic acid


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Option A: They contain double bond

Option B: They are usually solid at room temperature

Option C: They are lighter than water

Option D: Their specific gravity is less than 1

Correct Answer: They are usually solid at room temperature


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Option A: Psilophyton

Option B: Rhynia

Option C: Cooksonia

Option D: Psilotum

Correct Answer: Psilotum


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Option A: Saturated Fatty acid

Option B: Unsaturated fatty acid

Option C: Oleic Acid

Option D: Plamitic acid

Correct Answer: Oleic Acid


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Option A: C-C bonds

Option B: C-H bonds

Option C: C-N bonds

Option D: C-O bonds

Correct Answer: C-H bonds


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Option A: Monera

Option B: Algae

Option C: Slime molds

Option D: Plants

Correct Answer: Algae


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Option A: Water

Option B: Ether

Option C: All solvents

Option D: Not in any of the above

Correct Answer: Ether


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Option A: Monosaccharide

Option B: Fatty acid

Option C: Neutral lipid

Option D: Nucleic acid

Correct Answer: Neutral lipid


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Option A: Silk

Option B: Wool

Option C: Cotton

Option D: Paper

Correct Answer: Cotton


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Option A: Chitin

Option B: Cellulose

Option C: Lignin

Option D: Proteins

Correct Answer: Cellulose


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