Explore topic-wise MCQs in Biotechnology.

This section includes 813 Mcqs, each offering curated multiple-choice questions to sharpen your Biotechnology knowledge and support exam preparation. Choose a topic below to get started.

751.

WPW syndrome is caused by ?

A. Bundle branch block
B. Presence of bundle of knet
C. Left bundle of branch block
D. Ectopic pacemaker in atrium
Answer» C. Left bundle of branch block
752.

Kawasaki's disease has the following features except -

A. Coronary artery aneurysm
B. Conjunctival suffusion
C. Thrombocytopenia
D. Desquamation of the skin fingers and toes
Answer» D. Desquamation of the skin fingers and toes
753.

Pseudomentia is a feature of -

A. Endogenous depression
B. Alzheimer's disease
C. Parkinsonism
D. Multiple stroke
Answer» B. Alzheimer's disease
754.

The killing range of a military rifle is about -

A. 500 yards
B. 100 yards
C. 300 yards
D. 1000 yards
Answer» E.
755.

Takayasu's arteritis characteristically involves:

A. Abdominal aorta
B. Pulmonary artery
C. Arch of aorta
D. Branches of abdominal aorta
Answer» D. Branches of abdominal aorta
756.

Which one of the following is not a grievous hurt

A. Fracture bone
B. Inpatient for 15 days
C. Permanent loss of hearing of either ear
D. Deprivation of a finger
Answer» C. Permanent loss of hearing of either ear
757.

The most common manifestation of osteoporosis is

A. Compression fracture of the spine
B. Asymptomatic,detected incidentally by low serum Calcium
C. Bowing of legs
D. Loss of weight
Answer» B. Asymptomatic,detected incidentally by low serum Calcium
758.

In chronic arsenic poisoning the following samples can be sent for laboratory examination,except:

A. Bone biopsy.
B. Blood sample.
C. Nail clippings.
D. Hair samples.
Answer» C. Nail clippings.
759.

A 34yrs male meets with an accident with resultant transection of the pituitary stalk;what will NOT occur:

A. Hyperprolactinemia
B. Hypothyroidism
C. Diabetes mellitus
D. Diabetes insipidus
Answer» D. Diabetes insipidus
760.

A buffer that is most effective at a pH of above 4.5 is -

A. Phosphate buffer
B. Tris buffer
C. Acetate buffer
D. Bicarbonate buffer
Answer» D. Bicarbonate buffer
761.

Which of the following is not true regarding pseudobulbar palsy ?

A. Emotional liability
B. Exaggerated jaw jerk
C. Dysarthria
D. Flaccid tongue
Answer» E.
762.

If chymotrypsin molecule undergoes a ser-195-alamutation then:

A. Chymotrypsin will blind the substrate as well as cause cleavage
B. Chymotrypsin will not blind the substrate
C. No affect will be observed
D. Chymotrypsin will blind the substrate but will not cause cleavage
Answer» E.
763.

Isthumus of oropharynx

A. Palatoglossus
B. Palatopharyngeus
C. Salpingopharyngeus
D. Cricopharyngeus
Answer» B. Palatopharyngeus
764.

Which of the following act as antioxidants:

A. Vit.C
B. Selenium
C. Glutathione peroxidase
D. All of the above
Answer» E.
765.

A 13yrs girl has headache which is intermittent in episode in associated with tinnitus,vertigo and hearing loss.There is history of similar complains in her mother.Most probable diagnosis is -

A. Temporal arteritis
B. Vestibular neuronitis
C. Basilar migraine
D. Cervical spondylosis
Answer» D. Cervical spondylosis
766.

Declaration of Geneva is related with -

A. Disciplinary control
B. Medical etiquette
C. Professional misconduct
D. Hippocratic oath
Answer» E.
767.

CSF rhinorrhea IMMEDIATE management is:

A. Wait and watch for 7 days + antibiotics
B. Plugging with petrolleum jelly plugs
C. Surgery
D. Blow the nose repeatedly
Answer» B. Plugging with petrolleum jelly plugs
768.

TRALI (Transfusion associated Lung Injury) is due to

A. Massive transfusion
B. Mismatch
C. Leucocyte Ag-Ab reaction
D. Hemolytic reaction.
Answer» D. Hemolytic reaction.
769.

A 2 year old child came to emergency with acute onset of respiratory distress and stridor.Most probable diagnosis is:

A. Foreign body in airway
B. Laryngomalacia
C. Laryngotracheobronchitis
D. Laryngeal papillomatosis
Answer» B. Laryngomalacia
770.

In maple syrup urine disease there is elevation of plasma and urinary level of:

A. Lysine
B. Phenylalanine
C. Leucine
D. Arginine
Answer» D. Arginine
771.

A positive fistula test during Siegelisation indicates

A. Ossicular discontinuity
B. Para-labyrinthitis due to erosion of lateral semi-circular canal
C. C.S.F. leak through the ear
D. Fixation of stapes bone
Answer» C. C.S.F. leak through the ear
772.

Which of the following diagnostic techniques is most specific for pulmonary embolism -

A. Pulmonary angiography
B. Ventilation lung scanning
C. Perfusion lung scanning
D. Arterial blood gas analysis
Answer» B. Ventilation lung scanning
773.

A elderly man with progressive dementia of recent onset presents with intermittent irregular jerky movements.EEG shows periodic sharp biphasic waves.The most probable diagnosis is:

A. Creutzfeldt Jakob disease
B. Alzheimer's disease
C. Herpes Simplex Encephalitis
D. Lewy body dementia
Answer» B. Alzheimer's disease
774.

What is the most common cause for Budd chiari syndrome:

A. Right ventricular failure
B. PNH
C. Valve in hepatic veins
D. Polycythemia vera
Answer» E.
775.

Following cranical nerve is most commonly involved in patients with sarcoidosis:

A. II Cranical nerve
B. III Cranial nerve
C. VII Cranial nerve
D. IX Cranial nerve
Answer» D. IX Cranial nerve
776.

About Diabetic Ketoacidosis is true:

A. Normal anion gap
B. Glucose < 250mg/dl
C. Decreased Bicarbonate
D. Increased Lactate
Answer» D. Increased Lactate
777.

A 26yrs unmarried lady present with dyspnea. Her chest X-ray is normal, FVC is 92%, FEVI/FVC is 89% and DLCO is 59% of normal.On exercise her oxygen drops from 91% to 85%.Possible diagnosis is -

A. Primary pulmonary hypertension
B. Alveolar hypoventilation
C. Anxiety
D. Interstitial lung disease
Answer» E.
778.

Which of the following is the most common cause of late neurological deterioration in a case of cerebrovascular accident:

A. Rebleeding
B. Vasospasm
C. Embolism
D. Hydrocephalus
Answer» C. Embolism
779.

In sever MS all are true except -

A. Pulsatile liver
B. Atrial fibrillation
C. Opening snap delayed from S2
D. Length of murmur is increased
Answer» D. Length of murmur is increased
780.

In Mg deficiency all is seen except -

A. Hypercalcemia
B. Tetany
C. Nausea + vomiting
D. Neurological abnormalities
Answer» B. Tetany
781.

Gene therapy is given in

A. Sickle cell anemia
B. Severe combined immunodeficiency syndrome
C. Cystic fibrosis
D. Thalassemia
Answer» D. Thalassemia
782.

The following are components of Brown Sequard syndrome except:

A. Ipsilateral extensor plantar response
B. Ipsilateral pyramidal tract involvement
C. Contralateral spinothalamic tract involvement
D. Contralateral posterior column involvement
Answer» E.
783.

Significant weight loss is defined as ?

A. 5% in 1-2 month
B. 10% in 1-2 month
C. 5% in 2-3 month
D. 10% in 2-3 month
Answer» B. 10% in 1-2 month
784.

Drug of choice for American trypanosomiasis is ?

A. Miltefosine
B. Amphotericin
C. Antimony
D. Nifurtimox
Answer» E.
785.

Clinical features of Parkinson's disease A/E -

A. Tremors at rest
B. Akinesia-bradykinesia
C. Muscle rigidity
D. Preserved postural reflexes
Answer» E.
786.

A female patient complains of intermittent claudication,dizziness and headache;probable cardiac lesion is:

A. PDA
B. Coarctation of aorta
C. TOF
D. ASD
Answer» C. TOF
787.

Carcinoid syndrome is associated with all except -

A. Flushing of skin
B. Skin lesions like pellagra
C. VMA in urine
D. Bronochospasm
Answer» D. Bronochospasm
788.

A man aged 60 years has h/o IHD and atherosclerosis.He presents with abdominal pain and maroon colored stool,likely diagnosis is:

A. Acute intestinal obstruction
B. Acute mesentric ischemia
C. Peritonitis
D. Appendicitis
Answer» C. Peritonitis
789.

All are true regarding Menetrier's disease, except -

A. Protein loss
B. Exophytic growth
C. Hypertrophy of gastric mucosa
D. Premalignant condition
Answer» C. Hypertrophy of gastric mucosa
790.

In Kussmaul's sign there is-

A. Increased JVP during inspiration
B. Decreased JVP during inspiration
C. Increased JVP during expiration
D. Decreased JVP during expiration
Answer» B. Decreased JVP during inspiration
791.

Bronchial Asthma is associated with raised level of -

A. Leukotrienes
B. PGI 2
C. PGI 1
D. Thromboxane
Answer» B. PGI 2
792.

Dementia in patient of chronic renal failure with chronic hemodialysis is due to -

A. Aluminium toxicity
B. Uremia
C. Hypokalemia
D. Hypertensive encephalopathy
Answer» B. Uremia
793.

Which of the following is true about Post-Streptocoeeal Glomerulonephritis ?

A. Early treatment of Pharyngitis eleminates the risk of P.S.G.N.
B. 50% of cases occur after pharyngitis
C. Recurrence is seen
D. Glomerulonephritis,secondary to skin infection,is more common in summer
Answer» E.
794.

The systolic ejection murmur in hypertrophic obstructive cardiomyopathy in diminished when a patient -

A. Performs the valsalva maneuver
B. Lies down
C. Inhales amyl nitrite
D. Stands up
Answer» C. Inhales amyl nitrite
795.

A patient presented with severe hyperkalemia and tall T waves on ECG. Most quick way to decreased potassium level is-

A. Oral resins
B. Calcium gluconate
C. Sodium bicarbonate
D. Insulin+glucose
Answer» E.
796.

Which of the following is the best predictor for future risk of cardiovascular events?

A. Homocysteine
B. Interleukin 6
C. hs CRP
D. Lipoprotein 'a'
Answer» D. Lipoprotein 'a'
797.

The features of digitalis toxicity are called except -

A. Vomiting
B. Yellow vision
C. Headache
D. Diarrhoea
Answer» E.
798.

Which of the following is NOT a myeloproliferative disease:

A. Polycythemia rubra vera
B. Acute myeloid leukemia
C. Chronic myeloid leukemia
D. Essential thrombocytosis
Answer» C. Chronic myeloid leukemia
799.

Vitamin E deficiency is associated with -

A. Ataxia
B. Cholestasis
C. Hyperkeratosis
D. Pseudotumor cerebri
Answer» B. Cholestasis
800.

Bone marrow transplant is the treatment of choice in A/E -

A. Aplastic anemia
B. AML in 1st remission
C. ITP
D. ALL in second remission
Answer» D. ALL in second remission