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.

301.

cGPM is second messenger for which hormones -

A. Atrial natriuretic factor
B. Somatostatin
C. Antidiuretic hormone (ADH)
D. Angiotensin II
Answer» B. Somatostatin
302.

Negative contrast medium is -

A. Difficult for X rays to penetrate
B. Easily penetrated by X rays
C. High in atomic number
D. Opaque to X rays
Answer» C. High in atomic number
303.

Decrease extracellular calcium leads to ?

A. Decrease excitability
B. Decrease membrane stability
C. Increase amount of depolarization needed
D. All of the above
Answer» C. Increase amount of depolarization needed
304.

Which of the following does not contain Fat on mammography?

A. Hamartoma
B. Post-traumatic cyst
C. Galactocele
D. Seborrhic keratosis
Answer» E.
305.

True about spinocerebellar tract is

A. Smoothens and coordinates movement
B. Equilirrium
C. Planning and programming
D. Learning induced by change in vestibulocular reflex
Answer» B. Equilirrium
306.

Snow storm appearance is seen in ?

A. Tubal pregnancy
B. Abdominal pregnancy
C. Hydatidiform mole
D. Fibroid
Answer» D. Fibroid
307.

The laboratory report shows values of gonadotropin and ovarian hormones of the blood sample taken,on day 20 of the menstrual cycle of a young woman.Whether her cycle was ovulatory or not may be validly assessed by the reported serum level of:

A. FSH
B. LH
C. Oestradiol
D. Progesterone
Answer» E.
308.

Obstruction of hypothalamic hypophyseal portal system causes increase secretion of:

A. GH
B. FSH
C. LH
D. Dopamine
Answer» E.
309.

Active substance in Hashish is -

A. Mescaline
B. Tetra Hydrocannabinol
C. Morphine
D. LSD
Answer» C. Morphine
310.

Kluver bucy syndrome includes all except ?

A. Hyper sexuality
B. Hyper activity
C. Placidity
D. Hyper metamorphosis
Answer» C. Placidity
311.

Synaptic conduction is mostly orthodromic because -

A. Dendrites cannot be depolarized
B. Once repolarized, an area cannot be depolarized
C. The strength of antidromic impulse is less
D. Chemical mediator is located only in the pre-synaptic terminal
Answer» E.
312.

For color vision, which is true?

A. Depends on intensity discrimanation
B. Independent of wavelength of light
C. Minimum at fixation point
D. Involves opponent color cells
Answer» E.
313.

Characteristic symptoms in induced psychotic disorder is -

A. Accepting delusions of other persons
B. Insomnia
C. Suicidal ideation
D. Profound mood disturbance
Answer» B. Insomnia
314.

Following hormones are produce by endocrinal part of pancreas -

A. Insulin
B. Somatostatin
C. Glucagons
D. All of the above
Answer» E.
315.

Fetal Hb

A. 1 month
B. 6 months
C. 1 year
D. 2 years
Answer» D. 2 years
316.

An index of operational efficiency of the malaria control programme is -

A. Annual parasite incidence
B. Annual blood examination rate
C. Slide positivity rate
D. Human blood index
Answer» C. Slide positivity rate
317.

All of the following transport process follow 'saturation kinetics' except -

A. Facilated diffusion
B. Na+ - Ca2+exchanger
C. Simple diffusion
D. Na+ coupled active transport
Answer» D. Na+ coupled active transport
318.

In the WHO recommended EPI Cluster sampling for assessing primary immunization coverage, age group of children to be surveyed is -

A. 0-12 months
B. 6-12 months
C. 9-12 months
D. 12-23 months
Answer» E.
319.

Transmitter mainly involved in OCN -

A. GABA
B. Serotonin
C. Dopamine
D. Nor Adrenaline
Answer» C. Dopamine
320.

About sodium, true -

A. Nornal serum level is 135-145 mEq/L
B. Daily intake is 150 mmol of NaCl
C. Major protection is extra cellular
D. All of the above
Answer» E.
321.

Paranoid Schizophrenia is caused by -

A. L Dopa
B. Fluoxetine
C. Amphetamine
D. Ketamine
Answer» D. Ketamine
322.

Osmoreceptors are present in -

A. Left atrium
B. Ventricle
C. Anterior hypothalamus
D. Internal carotid artery
Answer» D. Internal carotid artery
323.

Dentate muscle is a part of -

A. Medulla
B. Cerebellum
C. Midbrain
D. Pons
Answer» C. Midbrain
324.

All belongs to class Insecta except:

A. Housefly
B. Rat fleas
C. Ticks
D. Bedbugs
Answer» D. Bedbugs
325.

Most important stimulant for bile secretion is -

A. Bile acid
B. Bile salt
C. Cholecystokinin
D. Secretin
Answer» C. Cholecystokinin
326.

Surfactant is produced by ?

A. Type I Pneumocytes
B. Type II Pneumocytes
C. Alveolar macrophages
D. Clara cells
Answer» C. Alveolar macrophages
327.

Qualities of a leader are all except:

A. Leading from the front
B. Burning/breaking of bridges
C. Courageous
D. Fights instantly
Answer» C. Courageous
328.

The concentration of sphingomyelins are increased in -

A. Gaucher's disease
B. Fabry's disease
C. Febrile disease
D. Niemann-Pick disease
Answer» E.
329.

Drug of choice for panic disorder -

A. Diazepam
B. Chlorpromazine
C. Fluoxetine
D. Lithium
Answer» D. Lithium
330.

Mutism is a recognised feature of -

A. Ganser states
B. Conversion hysteria
C. Catatonic schizophrenia
D. All of the above
Answer» E.
331.

All of the following development events are dependent on the production of maternal or fetal glucocorticoid,except:

A. Functional thyroid
B. Functional hypothalamopituitary axis
C. Induction of thymic involution
D. Production of surfactant by type II alveolar cells
Answer» C. Induction of thymic involution
332.

4-8 qualified persons, discuss a topic in front of a large audience, is an example of -

A. Symposium
B. Panel discussion
C. Workshop
D. Group Discussion
Answer» C. Workshop
333.

Regarding carbon monoxide toxicity true are A/E -

A. Shift HbO2 dissociation cure to left
B. Gaseous vasodilator
C. Cytochrome toxicity is lethal
D. Treated by 5% CO2
Answer» D. Treated by 5% CO2
334.

Sympathy of captives towards its captor is called:

A. Idiot savant syndrome
B. Stockholm syndrome
C. Ganser syndrome
D. Lowden syndrome
Answer» C. Ganser syndrome
335.

Heart muscle,true are all except:

A. Act as syncitium
B. Has multiple nuclei
C. Has gap junctions
D. Has branching
Answer» C. Has gap junctions
336.

The term 'Dementia precox' was coined by Freud

A. Kraepelin
B. Bleuler
C. Schineider
D. Freud
Answer» B. Bleuler
337.

True about Hb dissociation curve is -

A. Hypoxia shifts curve to left
B. 2.3 DPG has no effect on curve
C. Acidosis shifts O2 dissociation curve to the right
D. Increase CO2 shifts the curve to left
Answer» D. Increase CO2 shifts the curve to left
338.

Physiologically inactive form is -

A. Angiotensin III
B. Angiotensin IV
C. Angiotensin I
D. Angiotensin II
Answer» D. Angiotensin II
339.

Unmyelinated nerve endings for warm,cold perception is:

A. Meissner's corpuscle
B. Pacinian Corpuscle
C. Merkel's disc
D. None
Answer» E.
340.

Increase in cytosolic calcium from intracellular storage, during smooth muscle contraction is due to -

A. CCMP
B. IP3-DAG
C. CAMP
D. CGMP
Answer» C. CAMP
341.

A 35 year old man with an obsessive compulsive personality disorder is likely to exhibit all of the following features, except -

A. Preoccupation with rule
B. Indecisiveness
C. Perfectionism interfering with performance
D. Compulsive checking behaviour
Answer» C. Perfectionism interfering with performance
342.

In a normal person which of the following occurs when he changes to supine position from standing -

A. Heart rate settles to a higher level
B. Cerebral perfusion increases
C. Decreased perfusion to the apex
D. Immediate increase in venous return
Answer» E.
343.

In the following food items, which has the highest 'Glycemic Index' ?

A. Ice-cream
B. Whole white bread
C. Corn-flakes
D. Brown rice
Answer» D. Brown rice
344.

Normal anion gap metabolic acidosis is seen in -

A. Lactic acidosis
B. Diabetic ketoacidosis
C. Diarrhoea
D. Renal failure
Answer» D. Renal failure
345.

A patient of schizophrenia on neurolepts, his psychotic symptoms gets relieved but developed sadness, talks less to others, remain on bad, all of the following are likely causes except -

A. Negative symptoms are still persisting
B. He is reacting to external stimuli
C. Parkinsonism
D. Major depression
Answer» C. Parkinsonism
346.

Sjogren's syndrome is characterized by -

A. Deficient lacrimal secretion
B. Polyarthritis
C. Dry mouth
D. All of the above
Answer» E.
347.

A 25 year old lady presented with sadness, palpitation,loss of appetite and insomnia. There is no complaint of hopelessness,suicidal thoughts and there is no past history of any precipitating event.She is remarkably well in other areas of life. She is doing her office job normally and her social life is also normal.What is the probable diagnosis in this case?

A. Adjustment disorder
B. Mild depressive episode
C. GAD
D. Mixed anxiety depression
Answer» D. Mixed anxiety depression
348.

True regarding golgi apparatus is A/E -

A. Trans is secretory end
B. Nonpolarized structure
C. Situated near nucleus
D. All of the above
Answer» C. Situated near nucleus
349.

Maximum absorption of water takes place in:

A. Collecting duct
B. Loop of henle
C. Proximal convoluted tubule
D. Distal convoluted tubule
Answer» D. Distal convoluted tubule
350.

Displacement reaction is characteristically seen in -

A. Phobia
B. Mania
C. Depression
D. Conversion disorder
Answer» B. Mania