Biology MCQs

Option A: Emil Fischer

Option B: Koshland

Option C: Robin Williams

Option D: Rudolph Virchow

Correct Answer: Emil Fischer ✔

Option A: DNA

Option B: Nucleus

Option C: Eukaryotic ribosomes

Option D: RNA

Correct Answer: Eukaryotic ribosomes ✔

Option A: Inorganic

Option B: Cationic

Option C: Anionic

Option D: Organic

Correct Answer: Organic ✔

Option A: F.Miescher

Option B: Chargaff

Option C: Watson & Crick

Option D: Harshay & Chase

Correct Answer: Chargaff ✔

Option A: Chromoplasts

Option B: Leucoplasts

Option C: Chloroplasts

Option D: All of these

Correct Answer: Chromoplasts ✔

Option A: Chromosomal aberration

Option B: Insertion of gene

Option C: Deletion of gene

Option D: Point mutation

Correct Answer: Point mutation ✔

Option A: Endoderm

Option B: Ectoderm

Option C: Mesoderm

Option D: Extraembryonic layers

Correct Answer: Mesoderm ✔

Option A: Down’s syndrome

Option B: Klinifelter’s syndrome

Option C: Turner’s syndrome

Option D: Jacob’s syndrome

Correct Answer: A. Down’s syndrome ✔

Option A: Mitochondria Ribosomes

Option B: Mitochondria Nucleus

Option C: Mitochondria Chloroplast

Option D: Mitochondria Vacuole

Correct Answer: C. Mitochondria Chloroplast ✔

Option A: Primase

Option B: Polymerase

Option C: Helicase

Option D: Ligase

Correct Answer: Ligase ✔

Option A: Fe2+

Option B: Mg2+

Option C: Zn2+

Option D: Cu2+

Correct Answer: B. Mg2+ ✔

Option A: Epidermis

Option B: Muscle cells

Option C: Gut

Option D: Notochord

Correct Answer: Muscle cells ✔

Option A: 1?3

Option B: 3?4

Option C: 10000

Option D: 30000

Correct Answer: B. 3?4 ✔

Option A: Trait

Option B: Phenotype

Option C: Genotype

Option D: Ratios

Correct Answer: Genotype ✔

Option A: A’ blood group

Option B: B’ blood group

Option C: O’ blood group

Option D: AB’ blood group

Correct Answer: D. AB’ blood group ✔

Option A: Cell membrane

Option B: Matrix

Option C: Thylakoids

Option D: Stroma

Correct Answer: C. Thylakoids ✔

Option A: AMP

Option B: ADP

Option C: ATP

Option D: All of these

Correct Answer: ATP ✔

Option A: Graffian follicle

Option B: Ovary

Option C: Corpus luteum

Option D: Placenta

Correct Answer: Corpus luteum ✔

Option A: Gastric juice

Option B: Pancreatic juice

Option C: Bile

Option D: All of these

Correct Answer: Gastric juice ✔

Option A: Enzymes

Option B: Co-enzymes

Option C: Ribosomes

Option D: Thylakoids

Correct Answer: Thylakoids ✔

Option A: Short day plant

Option B: Long day plant

Option C: Day neutral plant

Option D: None of these

Correct Answer: Short day plant ✔

Option A: Nucleolus

Option B: Nucleus

Option C: DNA

Option D: RNA

Correct Answer: Nucleolus ✔

Option A: Insulin

Option B: Thyroxine

Option C: ADH

Option D: Cortisone

Correct Answer: ADH ✔

Option A: Latent learning

Option B: Insight learning

Option C: Operant conditioning

Option D: Instinct

Correct Answer: Insight learning ✔

Option A: Stroma

Option B: Grana

Option C: Thylakoid

Option D: Outer membrane

Correct Answer: A. Stroma ✔

Option A: Proximal part of oviduct

Option B: Distal part of oviduct

Option C: Uterus

Option D: Cervix

Correct Answer: Proximal part of oviduct ✔

Option A: It contains F1 particles

Option B: It is involved in the synthesis of protein

Option C: It is a self replicating organelle

Option D: Number of mitochondria is constant

Correct Answer: Number of mitochondria is constant ✔

Option A: Epilepsy

Option B: Meningitis

Option C: Alzheimer’s disease

Option D: Parkinson’s disease

Correct Answer: D. Parkinson’s disease ✔

Option A: 1.0 mm

Option B: 0.1 mm

Option C: 1.0 cm

Option D: 1.0 dm

Correct Answer: 1.0 mm ✔

Option A: Fibrous joints

Option B: Cartilaginous joints

Option C: Synovial Joints

Option D: Slightly moveable joints

Correct Answer: Fibrous joints ✔

Option A: A band

Option B: 1 band

Option C: H zone

Option D: Sarcomere

Correct Answer: H zone ✔

Option A: One which help in assembly of spindles during mitosis.

Option B: One involved in internal cell motion.

Option C: One involved in maintenance of cell shape.

Option D: Both b and c

Correct Answer: One which help in assembly of spindles during mitosis. ✔

Option A: Primary xylem

Option B: Secondary xylem

Option C: Primary phloem

Option D: Secondary phloem

Correct Answer: Secondary xylem ✔

Option A: Those lysosomes which eat parts of their own cells to generate energy.

Option B: Those lysosomes which eat old and worn out cellular organelles.

Option C: Lysosomes which help in extracellular digestion

Option D: Both a and b

Correct Answer: Both a and b ✔

Option A: 5

Option B: 7

Option C: 9

Option D: 12

Correct Answer: 7 ✔

Option A: Cold blooded animal

Option B: Ectotherm

Option C: Endotherm

Option D: Heterotherm

Correct Answer: l ✔

Option A: Primary wall

Option B: Secondary wall

Option C: Middle lamella

Option D: all of the above

Correct Answer: Primary wall ✔

Option A: Rhizobium

Option B: Nitrosomonas

Option C: Nitrobacter

Option D: Pseudomonas

Correct Answer: Nitrosomonas ✔

Option A: More than 2500 mm

Option B: 750-1500 mm

Option C: 250-750 mm

Option D: Less than 250 mm

Correct Answer: 250-750 mm ✔

Option A: Primary wall

Option B: Secondary wall

Option C: Middle lamella

Option D: All of these

Correct Answer: Primary wall ✔

Option A: CO2

Option B: O2

Option C: Water

Option D: Nutrients

Correct Answer: Nutrients ✔

Option A: Active transport

Option B: Passive transport

Option C: Co-transport

Option D: Counter transport

Correct Answer: Passive transport ✔

Option A: Tropical rain forest

Option B: Temperate deciduous forest

Option C: Grassland

Option D: Tundra

Correct Answer: Tropical rain forest ✔

Option A: Air

Option B: Water

Option C: Land

Option D: Gravity

Correct Answer: Gravity ✔

Option A: 20-40%

Option B: 40-50%

Option C: 60-80%

Option D: 80-100%

Correct Answer: 60-80% ✔

Option A: Linnaeus

Option B: Aristotle

Option C: Mendel

Option D: Lamarck

Correct Answer: Linnaeus ✔

Option A: Recessive allele

Option B: Dominant allele

Option C: Homozygous dominant individual

Option D: Homozygous recessive individual

Correct Answer: Homozygous dominant individual ✔

Option A: Theodor Schwann and Schleiden

Option B: Rudolph Virchows

Option C: Louis Pasteur

Option D: Both b and c

Correct Answer: Rudolph Virchows ✔

Option A: Vasodilation

Option B: Activation of sweat glands

Option C: Thermogenesis

Option D: Evaporative cooling

Correct Answer: Thermogenesis ✔

Option A: Opening of inlet valve

Option B: Closure of inlet valve

Option C: Opening of outlet valve

Option D: Closure of outlet valve

Correct Answer: Closure of inlet valve ✔

Option A: Schwann

Option B: Schleiden

Option C: Robert Hook

Option D: Both a and b

Correct Answer: Robert Hook ✔

Option A: Carbon dioxide

Option B: Chlorofluorocarbons

Option C: UV rays

Option D: Deforestation

Correct Answer: Chlorofluorocarbons ✔

Option A: Sinus venosus

Option B: Right atrium

Option C: Left atrium

Option D: Conus arteriosus

Correct Answer: Sinus venosus ✔

Option A: Hydrogen bonding

Option B: Transpiration

Option C: Adhesion

Option D: Root prerssure

Correct Answer: Transpiration ✔

Option A: 1-2%

Option B: 3-4%

Option C: 5-7%

Option D: 90%

Correct Answer: 5-7% ✔

Option A: Cancer

Option B: Asthma

Option C: Tuberculosis

Option D: Emphysema

Correct Answer: Tuberculosis ✔

Option A: Parenchyma

Option B: Companion cell

Option C: Tracheid

Option D: Sieve element

Correct Answer: Sieve element ✔

Option A: Hemoglobin

Option B: Enzymes

Option C: Salts

Option D: Other proteins

Correct Answer: Hemoglobin ✔

Option A: 1

Option B: 2

Option C: 3

Option D: 4

Correct Answer: 4 ✔

Option A: 10%

Option B: 30%

Option C: 75%

Option D: 90%

Correct Answer: 75% ✔

Option A: Alveoli

Option B: Air sacs

Option C: Bronchi

Option D: Parabronchi

Correct Answer: Parabronchi ✔

Option A: Crustacean

Option B: Insecta

Option C: Arachnida

Option D: Myriapoda

Correct Answer: Insecta ✔

Option A: Carotenes

Option B: Carotenoids

Option C: Xanthophylls

Option D: Chlorophyll

Correct Answer: Carotenes ✔

Option A: Flatworm

Option B: Pinworm

Option C: Hook worm

Option D: Tapeworm

Correct Answer: Pinworm ✔

Option A: Newts

Option B: Varanope

Option C: Dipnoi

Option D: Hagfishes

Correct Answer: Dipnoi ✔

Option A: Observation?hypothesis?law?theory

Option B: Observation?hypothesis?deduction?testing of deduction

Option C: Hypothesis?observation?deduction?testing of deduction

Option D: law?theory?deduction?observation

Correct Answer: Observation?hypothesis?deduction?testing of deduction ✔

Option A: 5

Option B: 10

Option C: 20

Option D: 40

Correct Answer: 20 ✔

Option A: Sublingual

Option B: Submaxillary

Option C: Submandibular

Option D: Parotid

Correct Answer: Parotid ✔

Option A: Coenzyme ?

Option B: Cytochrome b

Option C: Oxygen

Option D: Glycolysis

Correct Answer: Coenzyme ? ✔

Option A: Molecule

Option B: Subatomic particles

Option C: Atoms

Option D: Organelles

Correct Answer: Organelles ✔

Option A: 5.3

Option B: 5.6

Option C: 7.3

Option D: 7.6

Correct Answer: 5.6 ✔

Option A: Hepatitis

Option B: Jaundice

Option C: Gall stones

Option D: Blockage

Correct Answer: Jaundice ✔

Option A: Ferns

Option B: Whisk ferns

Option C: Gymnosperms

Option D: Angiosperms

Correct Answer: Angiosperms ✔

Option A: Hydration

Option B: Obelia

Option C: Jelly fish

Option D: Physalia

Correct Answer: Hydration ✔

Option A: Ovule

Option B: Seed

Option C: Fruit

Option D: Embroyo sac

Correct Answer: Embroyo sac ✔

Option A: Flagella

Option B: Cilia

Option C: Wings

Option D: Feathers

Correct Answer: Wings ✔

Option A: RNA non-enveloped

Option B: RNA enveloped

Option C: DNA non-enveloped

Option D: DNA enveloped

Correct Answer: DNA enveloped ✔

Option A: Sterilization

Option B: Disinfection

Option C: Antisepsis

Option D: Preservation

Correct Answer: Sterilization ✔

Option A: All RNA viruses

Option B: All DNA viruses

Option C: All retroviruses

Option D: All viruses

Correct Answer: All retroviruses ✔

Option A: Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones

Option B: Older sediment layers have less amount of these reaioactive isotopes as that of the young ones.

Option C: Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.

Option D: Older sediment layers did not have these radioactive isotopes

Correct Answer: Older sediment layers have less amount of these reaioactive isotopes as that of the young ones. ✔

Option A: Aerobic bacteria

Option B: Anaerobic bacteria

Option C: Facultative bacteria

Option D: Microaerophilic

Correct Answer: Facultative bacteria ✔

Option A: Pencillin

Option B: Lovastatin

Option C: Cyclosporine

Option D: Ergotin

Correct Answer: Ergotin ✔

Option A: Microtubules

Option B: Microfilaments

Option C: Intermediate filaments

Option D: None of these

Correct Answer: Microtubules ✔

Option A: Parasitology

Option B: Social biological techniques

Option C: Biotechnology

Option D: Both a and c

Correct Answer: Biotechnology ✔

Option A: Endoplasmic reticulum

Option B: Golgi complex

Option C: Lysosomes

Option D: Cell membrane

Correct Answer: Golgi complex ✔

Option A: It is predictive

Option B: It has explanatory power

Option C: It discourages suggestion of different hypotheses

Option D: None of these

Correct Answer: It discourages suggestion of different hypotheses ✔

Option A: Endocytosis

Option B: Exocytosis

Option C: Phagocytosis

Option D: Pinocytosis

Correct Answer: Pinocytosis ✔

Option A: Hydration

Option B: Hydrolysis

Option C: Dehydration synthesis

Option D: Electrolysis

Correct Answer: Hydrolysis ✔

Option A: 53.10%

Option B: 19.90%

Option C: 17.60%

Option D: 9.40%

Correct Answer: 17.60% ✔

Option A: 65%

Option B: 18%

Option C: 10%

Option D: 3%

Correct Answer: 65% ✔

Option A: An organ

Option B: An organism

Option C: A Tissue

Option D: A Cell

Correct Answer: A Tissue ✔

Option A: Molecular biology

Option B: Physiology

Option C: Biochemistry

Option D: Atomic biology

Correct Answer: Biochemistry ✔

Option A: Population

Option B: Community

Option C: Biome

Option D: Habitat

Correct Answer: Biome ✔

Option A: 6

Option B: 16

Option C: 26

Option D: 15

Correct Answer: 6 ✔

Option A: Biodiversity

Option B: Phyletic lineage

Option C: Connecting link

Option D: Evolutionary line

Correct Answer: Phyletic lineage ✔

Option A: Polysaccharide

Option B: Protein

Option C: Hemoglobin

Option D: ATP

Correct Answer: ATP ✔

Option A: Bioremediation

Option B: Integrated disease management

Option C: Antisepsis

Option D: Biological control

Correct Answer: Biological control ✔

Option A: Community

Option B: Population

Option C: Ecosystem

Option D: Biome

Correct Answer: Population ✔

Option A: Environmental biologist

Option B: Paleontologist

Option C: Marine biologist

Option D: Social biologist

Correct Answer: Paleontologist ✔

Option A: Environmental biology

Option B: Social biology

Option C: Human biology

Option D: Both b and c

Correct Answer: Social biology ✔