Explore topic-wise MCQs in 12th.

This section includes 3578 Mcqs, each offering curated multiple-choice questions to sharpen your 12th knowledge and support exam preparation. Choose a topic below to get started.

2451.

Raphanobrassica is a classical example of

A. isomy
B. aneuploidy
C. allopolyploidy
D. allopolyploidy
Answer» D. allopolyploidy
2452.

After Hyperventilating for some time holding the breath is dangerous because:

A. Decrease CO2 shift the O2 dissociation curve to the left
B. Alkalosis can lead to tetany
C. It can lead to CO2 Narcosis
D. Due to lack of stimulation by CO2,anoxia can go into dangerous levels
Answer» E.
2453.

The drug which is not suitable for patients with acute porphyria for intravenous induction is -

A. Thiopentone sodium
B. Propofol
C. Midazolam
D. Etomidate
Answer» B. Propofol
2454.

Which of the following substances are commonly used in a filter?

A. Sand
B. Charcoal
C. Aluminum chloride
D. Both ( and (
Answer» E.
2455.

Antigen binding sites of an immunoglobulin are located in

A. heavy chain alone
B. light chain alone
C. Fab regions of the antibody
D. Fc region of the antibody
Answer» D. Fc region of the antibody
2456.

The crops which are involved in nitrogen fixation are

A. soybean
B. alfalfa and clover
C. all of these
D. bean and lupine
Answer» D. bean and lupine
2457.

Posterior boundary of carotid triangle is -

A. Sternohyoid
B. Sternocleidomastoid
C. Sup. Belly of omohyoid
D. Post. Belly of digastric
Answer» C. Sup. Belly of omohyoid
2458.

Dilatory : Expeditious :: Direct : ?

A. Tortuous
B. Circumlocutory
C. Straight
D. Curved
Answer» C. Straight
2459.

Myelin around central nervous axons is laid down by -

A. Microglia
B. Schwann cells
C. Oligodendrocytes
D. Protoplasmic astrocytes
Answer» D. Protoplasmic astrocytes
2460.

"Radical" is related to "Moderate" in the same way as "Revolution" is related to .. ?

A. Change
B. Chaos
C. Peace
D. Reformation
Answer» D. Reformation
2461.

All the muscle are used to abduct the sholder, except -

A. Serratus anterior
B. Pectoralis major
C. Deltoid
D. Supraspinatus
Answer» C. Deltoid
2462.

Which of the following infection(s) can be diagnosed by the use of polymerase chain reaction?

A. Hepatitis B virus
B. HIV-1 and HIV-2 viruses
C. All of these
D. Mycobacterium tuberculosis
Answer» D. Mycobacterium tuberculosis
2463.

The type of product failure which states that product may pose any health risk to the user of the product is classified as

A. financial risk
B. social risk
C. physical risk
D. functional risk
Answer» D. functional risk
2464.

What are the main constituents of culture for animal cell growth?

A. Growth factors
B. Glucose and Glutamine
C. All of these
D. Cytokines
Answer» C. All of these
2465.

Which of the following drugs may show plasmid-mediated resistance?

A. Ampicillin
B. Nalidixic acid
C. Methicillin
D. Rifampicin
Answer» B. Nalidixic acid
2466.

Which of the following is generally not referred to the sewerage system?

A. Storm sewers
B. Sanitary sewers
C. Solid sewers
D. Combined sewers
Answer» D. Combined sewers
2467.

When Escherichia coli grow in a well aerated medium, which of the following will occur?

A. Fructose di-phosphate accumulation inside the cells leading to fermentation
B. Fructose di-phosphate accumulation inside the cells leading to cell respiration
C. Fructose di-phosphate will accumulate inside the cells leading to anaerobic respiration
D. Fructose di-phosphate will accumulate regardless of the medium composition
Answer» B. Fructose di-phosphate accumulation inside the cells leading to cell respiration
2468.

The procapsid is assembled with the aid of __________ proteins.

A. framing
B. ladder
C. form
D. scaffolding
Answer» E.
2469.

బారత దేశ చరిత్రలోమొదటి సారిగా స్త్రీలు పాల్గొని జైలు కి వెళ్ళిన ఉద్యమం ఏది ?

A. స్వదేశీ మూమెంట్
B. క్విట్ ఇండియా
C. చీరాల-పేరాల
D. హోం రూల్
Answer» D. హోం రూల్
2470.

అంతః స్రావి మరియు బహి స్రావి గా పనిచేసే గ్రంధి ఏది ?

A. జటర గ్రంధి
B. క్లోమం
C. కాలేయం
D. ఏది కాదు
Answer» C. కాలేయం
2471.

Pain insensitive structure in brain is:

A. Middle meningeal artery
B. Choroid plexus
C. Flax cerebri
D. Dural sheath surrounding vascular sinuses
Answer» C. Flax cerebri
2472.

The reason that fats contain more energy than simple sugars, is fats have many more

A. hydrogen atoms
B. carbon atoms
C. hydrogen bonds
D. covalent bonds
Answer» E.
2473.

An enrichment medium for the isolation of Shigella is

A. Terathionate broth
B. Alkaline peptone water
C. none of these
D. Selenite F broth
Answer» E.
2474.

Placement of a double lumen tube for lung surgery is best confirmed by -

A. EtCO2
B. Airway pressure measurement
C. Clinically by auscultation
D. Bronchoscopy
Answer» E.
2475.

VIII cranial nerve affects

A. Equilibrium
B. Taste
C. Smell
D. Touch
Answer» B. Taste
2476.

ఈ క్రింద వానిలో విభజించ బడనిది ఏది ?

A. అణువు
B. పరమాణువు
C. బాక్టీరియా
D. వైరస్
Answer» C. బాక్టీరియా
2477.

Structures passing through the aortic hiatus of diaphragm are -

A. Aorta
B. Azygos vein
C. Thoracic duct
D. All of the above
Answer» E.
2478.

Which state is to the east of Alabama?

A. Georgia
B. New Mexico
C. Illinois
D. Texas
Answer» B. New Mexico
2479.

Infrahyoid ribbon muscles are contained in

A. Anterior digastric triangle
B. Carotid triangle
C. Muscular triangle
D. Submental tringle
Answer» D. Submental tringle
2480.

కాంతి తరంగం ఏదైనా అవరోధాన్ని తాకి దాని అంచుల వెంబడి వంగి ప్రయాణించడాన్ని ఏమంటారు ?

A. వక్రీభవనం
B. వ్యతికరణం
C. వివర్తనం
D. పరావర్తనం
Answer» D. పరావర్తనం
2481.

Peptidoglycan is a complex consisting of

A. polysaccharide and protein
B. oligo-saccharide and protein
C. aminoacid and carbohydrate
D. mono-saccharide and protein
Answer» C. aminoacid and carbohydrate
2482.

The collection efficiency by diffusion increases with

A. decreasing air velocity
B. decreasing particle size
C. increasing particle size
D. both ( and (
Answer» E.
2483.

జాతీయ ఆదాయాన్ని ఎవరు అంచనా వేస్తారు ?

A. ప్రధాన మంత్రి
B. ప్రణాళిక సంఘం
C. ఆర్ధిక మంత్రి
D. సి.ఎస్.ఓ
Answer» E.
2484.

Eustachian tube is supplies by -

A. Tympanic plexus
B. Carotico tympanic nerve
C. Glossopharyngeal nerve
D. All of the above
Answer» E.
2485.

With whom did Alexander Fleming serve during World War I?

A. Royal Air Force
B. Seventh Fleet
C. Royal Army Medical Corps
D. Maratha Light Infantry
Answer» D. Maratha Light Infantry
2486.

Ina pregnant female, there is decreased requirement of the spinal anaesthetic agent because of all of the following except -

A. Exaggerated lumber lordosis
B. Decreased volume of sub arachnoid space
C. Engorgement sensitivity of epidural veins
D. Increased sensitivity of the nerves to anaesthetic agent
Answer» B. Decreased volume of sub arachnoid space
2487.

In how many days is the sunnhemp fibre rotten in normal conditions?

A. 10-12 days
B. 8-10 days
C. 6-8 days
D. 5-6 days
Answer» B. 8-10 days
2488.

Pelvic splanchnic nerve is formed by -

A. Anterior rami of L5 S1 S2
B. Anterior rami of S2 S3 S4
C. Posterior rami of L5 - L1
D. Posterior rami of S2 - S3 - S4
Answer» C. Posterior rami of L5 - L1
2489.

All the following branches of the Vth nerve supply the Duramater except

A. Anterior ethmoidal
B. Posterior ethmoidal
C. Auriculotemporal
D. Mandibular
Answer» D. Mandibular
2490.

Who led an expedition in Alabama in 1540 in search of gold?

A. Walter Raleigh
B. Francis Drake
C. John Cabot
D. Hernando de Soto
Answer» E.
2491.

CD8 surface antigen is present in

A. suppresssor T cells
B. cytotoxic T cells
C. none of these
D. both ( and (
Answer» E.
2492.

Associate fibers are not -

A. Superior longitudinal fasciculus
B. Corpus callosum
C. Unicate fasciculus
D. Cingulum
Answer» C. Unicate fasciculus
2493.

సిసిలి కి చెందిన అగ్ని పర్వతం ________?

A. ఎట్నా
B. వేసూవియాస్
C. ప్యుజియామ
D. బారెన్ ద్వీపం
Answer» B. వేసూవియాస్
2494.

Yeast are most likely to grow in frozen fruits during

A. refrigeration
B. slow thawing
C. none of these
D. ambient temperature
Answer» C. none of these
2495.

The following anaesthetic drug causes pain on intravenous administration -

A. Propofol
B. Midazolam
C. Thiopentone sodium
D. Ketamine
Answer» B. Midazolam
2496.

Which phage always carries a small piece of E.coli genome?

A. Mu
B. Lambda
C. T3
D. T4
Answer» B. Lambda
2497.

కేంద్ర ప్రభుత్వం లో ఎన్ని రకాల మంత్రులు ఉంటారు ?

A. 3
B. 5
C. 2
D. 4
Answer» D. 4
2498.

ఏ ఓడ రేవు ను అరేబియా సముద్రపు రాణి అని అంటారు ?

A. ముంబై
B. కొచ్చిన్
C. కాండ్ల
D. ట్యుటికోరిన్
Answer» C. కాండ్ల
2499.

Molecules that bear charged groups of opposite polarity are known as

A. ambions
B. zwitterions
C. amphions
D. . ion conversion
Answer» C. amphions
2500.

Which of the following points refers to the economic level of output?

A. MR < MC
B. MR > MC
C. MR = AC
D. MR = MC
Answer» E.