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.

401.

The agent causing contraction of mesangial cells is -

A. Dopamine
B. PGE2
C. CAMP
D. Endothelins
Answer» E.
402.

Vitamin D is maximum in -

A. Milk
B. Fish fat
C. Eggs
D. Cod liver oil
Answer» E.
403.

A 10 degree decrease in temperature causes decrease in cerebral metabolic rate by:

A. 0.1
B. 0.3
C. 0.5
D. 0.7
Answer» E.
404.

QT interval in ECG means:

A. Ventricular depolarisation
B. Atrial repolarisation
C. Ventricular depolarization plus ventricular repolarisation
D. Ventricular depolarization plus atrial repolarisation
Answer» D. Ventricular depolarization plus atrial repolarisation
405.

Renin secretion is increased by all of the following except

A. Na+ in PCT
B. Afferent arteriolar low pressure
C. Na+ in DCT
D. Sympathetic nerve stimulation
Answer» B. Afferent arteriolar low pressure
406.

Rods and cones differ in all, except

A. Wavelength
B. Acuity
C. Signal trunsduction
D. Light sensitivity
Answer» D. Light sensitivity
407.

Living body control system correct deformity/disturbance -

A. Immediately
B. Completely
C. With gain
D. All of the above
Answer» E.
408.

Anatomy Equilibrium potential for an ions is calculated using -

A. Goldman equation
B. Gibbs Donnan equation
C. Henderson Hesslbach equation
D. Nernst equation
Answer» E.
409.

During heavy exercise the cardiac output (CO) increases upto five fold while pulmonary arterial pressure rises very little. This physiological ability of the pulmonary circulation is best explained by:

A. Large amount of smooth muscle in pulmonary arterioles
B. Smaller surface area of pulmonary circulation
C. Increase in the number of open capillaries
D. Sympathetically mediated greater distensibility of pulmonary vessels
Answer» D. Sympathetically mediated greater distensibility of pulmonary vessels
410.

Daily requirement of potassium is ?

A. 2-3 g/day
B. 3-4 g/day
C. 4-5 g/day
D. 5-7 g/day
Answer» B. 3-4 g/day
411.

In obesity, BMI is ?

A. >_ 25
B. >_ 20
C. >_ 30
D. >_ 40
Answer» D. >_ 40
412.

During shock which organ is spared from vasoconstriction ?

A. Skin
B. Heart
C. Kidney
D. Liver
Answer» C. Kidney
413.

In a certain population, there were 4050 births in the last one year.There were 50 still births. 50 infants died within 7 days whereas 150 died within the first 28 days.What is the Neonatal morality rate ?

A. 12.5
B. 49.5
C. 50
D. 62.5
Answer» D. 62.5
414.

Functional residual capacity is -

A. Volume remaining after forced expiration
B. Tidal volume + volume inspired forcefully
C. Volume remaining after normal expiration
D. Tidal volume + volume expired by forced expiration
Answer» D. Tidal volume + volume expired by forced expiration
415.

Mites are the vectors of the following diseases except

A. Scabies
B. Scrub typhus
C. Rickettsial pox
D. Kyasanur forest disease
Answer» E.
416.

All are seen in cerebral herniation,except:

A. Neck stiffness
B. Loss of consciousness
C. Pupil dilatation
D. Autonomic disturbances
Answer» B. Loss of consciousness
417.

In defining General Fertility Rate,the denominator is:

A. Population between 15 and 49 yrs of age
B. Women between 15 and 49 yrs of age
C. Mid year population
D. Live births
Answer» C. Mid year population
418.

Pseudoisomorphic phenomenon is seen in:

A. Vitiligo
B. Plane warts
C. Psoriasis
D. Lichen planus
Answer» C. Psoriasis
419.

True statement among the following is -

A. Bladder muscles contains intrafusal fibres
B. Bladder emptying can not occur if volume <100ml
C. One time fluid, intake results in complete excretion in 1 hour
D. Pressure increase in bladder very linerly with time
Answer» E.
420.

Vitamin D analogue calcitriol is useful in the treatment of -

A. Psoriasis
B. Lichen planus
C. Leprosy
D. Phemphigus
Answer» B. Lichen planus
421.

Which of the following does NOT stimulate peripheral chemoreceptors

A. Hypoxia
B. Hypocapnia
C. Acidosis
D. Low perfusion pressure
Answer» C. Acidosis
422.

Compared with unprocessed cow's milk, breast milk contains more -

A. Lipids
B. Proteins
C. Minerals
D. Carbohydrates
Answer» E.
423.

Wernicke's area is located in ?

A. Superior temporal gyrus
B. Inferior frontal gyrus
C. Cingulate sulcus
D. Insula
Answer» B. Inferior frontal gyrus
424.

Sympathetic stimulation causes all of the following except

A. Increase in total peripheral resistance
B. Increase in venous capacitance
C. Increase in heart rate
D. Increase in blood pressure
Answer» C. Increase in heart rate
425.

Pseudo paralysis pf Parrot is a manifestation of -

A. Early acquired syphilis
B. Congenital syphilis
C. Neurosyphilis
D. Latent syphilis
Answer» C. Neurosyphilis
426.

True about Bohr's effect is ?

A. Decreased affinity of HB to O2 is associated with decrease pH and increased CO2
B. Decreased affinity of HB to O2 is associated with increase pH and decrease CO2
C. Decreased affinity of HB to O2 is associated with decrease pH and CO2
D. Decreased affinity of HB to O2 is associated with increase pH and CO2
Answer» B. Decreased affinity of HB to O2 is associated with increase pH and decrease CO2
427.

An anterolaternal corodotomy relieving pain in right leg is effective because it interrupts the -

A. left ventral spinothalmic tract
B. Left dorsal column
C. Righr lateral spinothalmic tract
D. Left lateral spinothalmic tract
Answer» E.
428.

All of the following statements are true for 'Intestinal Motility'except:

A. Does not depend on Gastric motility
B. Increased by Distension
C. Increased by Acetylcholine
D. Increased by cholecystokinin
Answer» B. Increased by Distension
429.

A 16 year old male is found to have a mental age of 9 years on I.Q. testing.He has -

A. Mild mental retardation
B. Moderate mental retardation
C. Severe mental retardation
D. Profound mental retardation
Answer» B. Moderate mental retardation
430.

Condition where severe hypoxaemia occurs without cyanosis -

A. Interstitial lung defuse
B. Pulmonary A.V. malformation
C. CO poisoning
D. High altitude
Answer» D. High altitude
431.

Dementia is characterized by all except

A. Cognitive dysfunction
B. Languages dysfunction
C. Memory loss
D. Fluctuating course
Answer» E.
432.

In osteogenesis imperfecta, which of the following is defective ?

A. Phospate deposition in trabecular bone
B. Osteoblasts
C. Osteoclasts
D. Bone collagen
Answer» E.
433.

All are true for conversion reaction except -

A. Patient does not consciously produce symptoms
B. Relation with stress
C. Onset inlate age
D. Secondary gain
Answer» D. Secondary gain
434.

Dementia is seen in all except -

A. Huntingtons Chorea
B. Schizophrenia
C. Head injury
D. Alzheimer's disease
Answer» C. Head injury
435.

In stress which hormone is increased -

A. None
B. Both A and B
C. Vasopressin
D. Adrenaline
Answer» C. Vasopressin
436.

The test of choice to detect perivalvular abcess of the aortic valve is -

A. MRI of heart
B. Transesophageal Echo with Doppler
C. Ventriculography
D. CT chest
Answer» C. Ventriculography
437.

First order 'symptoms of schneides' schizophrenia include all except:

A. Primary delusion
B. Somatic passivity
C. Deparsonilization
D. Running commentery of ones thoughts
Answer» D. Running commentery of ones thoughts
438.

The efferent fiber bundle of the substantia nigra transmits dopamine to one of the following areas -

A. Corpus striatum
B. Thalamus
C. Tectum of midbrain
D. Tegmentum of pons
Answer» B. Thalamus
439.

An alcoholic is brought to the Emergency OPD with the complaint or irrelevent talking.He had stopped using alcohol three days back.On examination,he is found to be disoriented to time,place and person.He also has visual illusions and hallucination.There is no history of head injury .The most likely diagnosis is:

A. Delirium tremens
B. Demetia praecox
C. Korsakoff's psychosis
D. Schizophrenia
Answer» B. Demetia praecox
440.

All are controlled by autonomic nervous system except -

A. GH
B. Somatostain
C. Aldosterone
D. Insulin
Answer» D. Insulin
441.

A case control study can provide information to satisfy all the following criteria for causation EXCEPT

A. Strength of association
B. Dose response relationship
C. Temporal relationship
D. Consistency of association
Answer» C. Temporal relationship
442.

In calculating crude birth rate which of the following is used as denominator -

A. Women in 15-49 yrs age group
B. All person in 15-49 yrs age group
C. Mid year population
D. All live births
Answer» D. All live births
443.

ECF volume evaluated by ?

A. Mannitol
B. Inulin
C. D2 O
D. Evan's blue
Answer» C. D2 O
444.

Antipsychotic drug with prolonged action -

A. Penfuridol
B. Trifluperazine
C. Thioridazine
D. Fluphenazine
Answer» E.
445.

Drug therapeutic benefit in schizophrenia is -

A. Imipramine
B. Fluphenazine
C. Lithium
D. Doxepin
Answer» C. Lithium
446.

Following is part of 'Sentinel Surveillance' except -

A. Method for identifying the missing cases
B. Supplementing the notified cases
C. To estimate the disease prevalence in total population
D. To estimate the fatality of the disease
Answer» E.
447.

Following are correctly matched except -

A. Alcoholism - auditory hallucination
B. Depression - guilt feeling
C. Schizophrenia - Audiory hallucination
D. OCD - infidelity
Answer» E.
448.

Sentinel surveillance is done to

A. Know the total no.of cases in community
B. Know the hidden cases in community
C. Know natural history of disease
D. Plan intervention
Answer» C. Know natural history of disease
449.

The mechanism of hearing and memory,include all except:

A. Changes in level of neurotransmitter at synapse
B. Increasing protein synthesis
C. Recruitment by multiplication of neurons
D. Spatial Reorganization of synapse
Answer» D. Spatial Reorganization of synapse
450.

Group A nerve fibers are most susceptible to -

A. Pressure
B. Hypoxia
C. Local anaesthetics
D. Temperature
Answer» B. Hypoxia