Biology MCQs

Option A: Ecosystem

Option B: Community

Option C: Habitat

Option D: Niche

Correct Answer: Niche ✔

Option A: Prokaryotae

Option B: Plantae

Option C: Monera

Option D: Protista

Correct Answer: Protista ✔

Option A: Phylum

Option B: Family

Option C: Genus

Option D: Order

Correct Answer: Genus ✔

Option A: Protoctista

Option B: Prokaryotae

Option C: Archae

Option D: None of these

Correct Answer: Prokaryotae ✔

Option A: Rhizobium and leguminous plants

Option B: Marchantia sporophyte and gametophyte

Option C: Algae and fungi in a lichen

Option D: Mycorrhizal fungi and tree roots

Correct Answer: Marchantia sporophyte and gametophyte ✔

Option A: Secondary consumers

Option B: Herbivores

Option C: Carnivores

Option D: Decomposers

Correct Answer: Herbivores ✔

Option A: Protein

Option B: Carbohydrate

Option C: Lipid

Option D: DNA

Correct Answer: Protein ✔

Option A: Nitrobacter

Option B: Nitrosomonas

Option C: Rhizohium

Option D: All of these

Correct Answer: Rhizohium ✔

Option A: Prokaryotae

Option B: Protoctista

Option C: Plantae

Option D: Fungi

Correct Answer: Fungi ✔

Option A: Autotroph

Option B: Heterotroph

Option C: Parasite

Option D: Saprophyte

Correct Answer: Heterotroph ✔

Option A: million

Option B: 1 million

Option C: 1

Option D: 2 million

Correct Answer: 1 ✔

Option A: Limmnetic zone

Option B: Littoral zone

Option C: Profundal zone

Option D: None of these

Correct Answer: Littoral zone ✔

Option A: Autotrophs

Option B: Heterotrophs

Option C: Pro-cariotique

Option D: Eu-cariotique

Correct Answer: Pro-cariotique ✔

Option A: Vitamin B and C

Option B: Vitamin B and D

Option C: Vitamin C and B

Option D: Vitamin A and B

Correct Answer: Vitamin C and B ✔

Option A: Gills

Option B: Eustachian tube

Option C: Middle ear

Option D: Lungs

Correct Answer: Eustachian tube ✔

Option A: Onion

Option B: Amaltas

Option C: Potato

Option D: Tomato

Correct Answer: Potato ✔

Option A: Autotrophs

Option B: Heterotrophs

Option C: Procariotique

Option D: Eu-cariotique

Correct Answer: Autotrophs ✔

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 ✔

Option A: Species

Option B: Genus

Option C: Family

Option D: Order

Correct Answer: Order ✔

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 ✔

Option A: Onion

Option B: Amaltas

Option C: Potato

Option D: Tomato

Correct Answer: Onion ✔

Option A: Ligase enzyme

Option B: Primase enzyme

Option C: Restriction endonuclease

Option D: ATP-ase enzyme

Correct Answer: Ligase enzyme ✔

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 ✔

Option A: Prokaryotae

Option B: Protoctista

Option C: Animalia

Option D: Fungi

Correct Answer: Fungi ✔

Option A: Carlous Linnaeus

Option B: E-Chatton

Option C: Robert Whittaker

Option D: Lynn Margulis and Karlene Schwartz

Correct Answer: Robert Whittaker ✔

Option A: IAA

Option B: NAA

Option C: 2 4-D

Option D: GA

Correct Answer: 2 4-D ✔

Option A: Hyperchloesterolemia

Option B: Cystic fibrosis

Option C: Severe combined immunodeficiency syndrome

Option D: AIDS

Correct Answer: Cystic fibrosis ✔

Option A: 170

Option B: 20

Option C: 25

Option D: 15

Correct Answer: 20 ✔

Option A: Glycolipids

Option B: Glycoproteins

Option C: Nucleohistones

Option D: None of these

Correct Answer: Nucleohistones ✔

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 ✔

Option A: 3-4 %

Option B: 10-20%

Option C: 80%

Option D: 90%

Correct Answer: 80% ✔

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 ✔

Option A: Glycolipids

Option B: Glycoproteins

Option C: Nucleohistones

Option D: Proteins

Correct Answer: Glycoproteins ✔

Option A: G1 phase

Option B: S phase

Option C: G2 phase

Option D: M phase

Correct Answer: G2 phase ✔

Option A: Klinefelters syndrome

Option B: Turners syndrome

Option C: Downs syndrome

Option D: All of these

Correct Answer: All of these ✔

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 ✔

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 ✔

Option A: Soluble

Option B: Insoluble

Option C: Partially soluble

Option D: Depends upon condition

Correct Answer: Insoluble ✔

Option A: 23

Option B: 46

Option C: 0

Option D: 4

Correct Answer: 0 ✔

Option A: Chemicals

Option B: Hydrocarbons

Option C: Organic molecules

Option D: Inorganic molecules

Correct Answer: Organic molecules ✔

Option A: Gene

Option B: Anticodon

Option C: Code

Option D: Codon

Correct Answer: Anticodon ✔

Option A: H

Option B: N & O

Option C: P & S

Option D: All of these

Correct Answer: All of these ✔

Option A: Natural lipid

Option B: Neutral lipid

Option C: Neutral wax

Option D: All of these

Correct Answer: Neutral lipid ✔

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 ✔

Option A: ADH

Option B: MSH

Option C: Oxytocin

Option D: Progesterone

Correct Answer: Oxytocin ✔

Option A: Trioses

Option B: Hexoses

Option C: Tetroses

Option D: Pentoses

Correct Answer: Tetroses ✔

Option A: Glyceraldehydes

Option B: Dihydroxy acetone

Option C: Both of these

Option D: None of these

Correct Answer: Both of these ✔

Option A: Neurula

Option B: Morula

Option C: Gastrula

Option D: Balastula

Correct Answer: Balastula ✔

Option A: Carbohydrates

Option B: Fatty acid

Option C: Water

Option D: Protein

Correct Answer: Water ✔

Option A: The centromere

Option B: Nuceleosome

Option C: Telomere

Option D: Histone

Correct Answer: Nuceleosome ✔

Option A: Photoperiodism

Option B: Thermotropism

Option C: Vernalisation

Option D: Thermoregulation

Correct Answer: Vernalisation ✔

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 ✔

Option A: Sertoli cells

Option B: Germinal cell

Option C: Interstitial cells

Option D: Spermatocyte

Correct Answer: Interstitial cells ✔

Option A: Extracellular

Option B: Intracellular

Option C: Both of these

Option D: Glucose

Correct Answer: Extracellular ✔

Option A: Imprinting

Option B: Habituation

Option C: Latent learning

Option D: Insight learning

Correct Answer: Habituation ✔

Option A: CO

Option B: C-COO-C

Option C: HCOH

Option D: HOH

Correct Answer: CO ✔

Option A: Turgor movements

Option B: Growth movements

Option C: Tactic movements

Option D: Paratonic movments

Correct Answer: Turgor movements ✔

Option A: 3

Option B: 4

Option C: 5

Option D: 2

Correct Answer: 4 ✔

Option A: Organic acid

Option B: Alcohol

Option C: Water

Option D: Sugar

Correct Answer: Alcohol ✔

Option A: Activation of sweat glands

Option B: Dilation of skin blood vessels

Option C: Panting

Option D: Thermogenesis

Correct Answer: Thermogenesis ✔

Option A: Sarcolemma

Option B: Sarcoplasm

Option C: Sarcoplasmic reticulum

Option D: Cytosol

Correct Answer: Sarcoplasm ✔

Option A: C-6

Option B: C-25

Option C: C-26

Option D: C-30

Correct Answer: C-25 ✔

Option A: Protection against micro organisms

Option B: Temperature regulation

Option C: Excretion

Option D: All of these

Correct Answer: Protection against micro organisms ✔

Option A: Liquids

Option B: Gases

Option C: Solids

Option D: None of these

Correct Answer: Solids ✔

Option A: Superior vena cava

Option B: Inferior vena cava

Option C: Hepatic vein

Option D: Pulmonary vein

Correct Answer: Pulmonary vein ✔

Option A: Human beings

Option B: Influenza Virus

Option C: Hemophilus Influenza

Option D: None of these

Correct Answer: Hemophilus Influenza ✔

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 ✔

Option A: Burst

Option B: Be Killed

Option C: Be deplasmolysed

Option D: Show no change in it

Correct Answer: Be deplasmolysed ✔

Option A: Globular proteins

Option B: Fibrous Proteins

Option C: Both a and b

Option D: None of these

Correct Answer: Fibrous Proteins ✔

Option A: Humus

Option B: Detritus

Option C: Dead microscopic animals

Option D: Small crustaceans

Correct Answer: Small crustaceans ✔

Option A: Sponges

Option B: Annelida

Option C: Platyhelminthes

Option D: Aves

Correct Answer: Platyhelminthes ✔

Option A: H bonds

Option B: Disulphide Bond

Option C: Ionic bond

Option D: Hydrophobic bonds

Correct Answer: H bonds ✔

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 ✔

Option A: Haemoglobin

Option B: Pepsin

Option C: Fibrin

Option D: Insulin

Correct Answer: Fibrin ✔

Option A: Primary

Option B: Secondary

Option C: Tertiary

Option D: Quaternary

Correct Answer: Tertiary ✔

Option A: Chordate

Option B: Protochordate

Option C: Lower chordate

Option D: All of these

Correct Answer: All of these ✔

Option A: Algae

Option B: Bacteria

Option C: Cyanobacteria

Option D: Chlamydomonas

Correct Answer: Cyanobacteria ✔

Option A: Globular proteins

Option B: Fibrous Proteins

Option C: Both a and b

Option D: None of these

Correct Answer: Globular proteins ✔

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 ✔

Option A: 5

Option B: 10

Option C: 20

Option D: 25

Correct Answer: 10 ✔

Option A: Lytic cycle

Option B: Lysogenic cycle

Option C: Both a & b

Option D: All of these

Correct Answer: Lytic cycle ✔

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 ✔

Option A: Hydrophobic

Option B: Hydrophilic

Option C: Basic

Option D: None of these

Correct Answer: Hydrophobic ✔

Option A: Primary structure

Option B: Secondary structure

Option C: Tertiary structure

Option D: Quaternary structure

Correct Answer: Quaternary structure ✔

Option A: Amoebas

Option B: Zooflagellates

Option C: Ciliates

Option D: Apicomplexans

Correct Answer: Apicomplexans ✔

Option A: Primary structure

Option B: Secondary structure

Option C: Tertiary structure

Option D: Quaternary structure

Correct Answer: Primary structure ✔

Option A: 554

Option B: 564

Option C: 574

Option D: 584

Correct Answer: 574 ✔

Option A: Phosphodiester linkage

Option B: Glycosidic bond

Option C: Peptide bond

Option D: Hydrogen bond

Correct Answer: Peptide bond ✔

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 ✔

Option A: 1

Option B: 2

Option C: 3

Option D: 4

Correct Answer: 2 ✔

Option A: Protein

Option B: NaCl

Option C: Water

Option D: Cholesterol

Correct Answer: Water ✔

Option A: 20

Option B: 25

Option C: 150

Option D: 170

Correct Answer: 170 ✔

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 ✔

Option A: C

Option B: S

Option C: H

Option D: N

Correct Answer: S ✔

Option A: 1

Option B: 2

Option C: 3

Option D: 6

Correct Answer: 3 ✔

Option A: H

Option B: CH3

Option C: COOH

Option D: C = O

Correct Answer: H ✔

Option A: C55H70O5N4Mg

Option B: C55H72O6N4Mg

Option C: C55H70O6N4Mg

Option D: C55H72O5N4Mg

Correct Answer: C55H70O6N4Mg ✔

Option A: Fatty acids

Option B: Isoprenoid units

Option C: Amino acids

Option D: Nucleotides

Correct Answer: Amino acids ✔

Option A: Chordata

Option B: Hydra

Option C: Echinodermata

Option D: Hemichordata

Correct Answer: Echinodermata ✔

Option A: i & ii

Option B: iii & iv

Option C: i ii iii & iv

Option D: iv only

Correct Answer: iv only ✔