471.Denaturation of double stranded DNA results in

a.It gets broken down to nucleotides.
b.It becomes single stranded reversibly.
c.Becomes single stranded iireversibly.
d.Becomes double stranded permanently.

Ans-b.It becomes single stranded reversibly.

319.Which type of lamp emits light at a single wavelength

a.ARGON LASER LAMPS
b.LED LAMPS
c.QTH LAMPS
d.PAC LAMPS

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254.Which of the following statement about Carbon monoxide poisoning is true?

a) Hypoxic hypoxia
b) Curve shift towards left
c) Curve shifts to the right
d) Oxygen binding increases

Ans-c) Curve shifts to the right

253.The processing of short term memory to long term memory is done in?

a) Prefrontal cortex
b) Hippocampus
c) Neocortex
d) Amygdala

Ans-b) Hippocampus

Explanation:(Ref:Ganong 26th edition Pg 269)

252.Cereals are deficient in?

a) Calcium
b) Iron
c) Vit B
d) Vit C


Ans-d)Vit C


Explanation:“Traces of Vit. C occur in fresh meat and fish But scarcely in cereals”.
(Ref: Park 18th: pg 448)

251.) A person showing two cell lines derived from two different zygotes is?

a) Chimerism
b) Mosaicism
c) Segregation
d) Pseudo-dominance

Ans-a)Chimerism

Explanation:a chimera is an animal that has two or more different populations of genetically distinct cells that originated in different zygotes; if the different cells emerged from the same zygote, it is called a mosaicism.

248.First clinical sign of Vitamin A deficiency

a.corneal xerosis
b.conjuctival xerosis
c.Bitot's spots
d.Night blindness

Ans-b.conjuctival xerosis

Explanation-ref park 18th ed pg 443

225.Which of the following is the action of styloglossus?

1.Acts to protrude the tongue and retract tip of tongue.
2.Acts to pull sides of tongue downward and aids retrusion.
3.Acts to draw up the tongue to create a trough for
swallowing.
4.Flattens and broadens tongue.


Ans:3.Acts to draw up the tongue to create a trough for
swallowing.

214.Cross resistance of isoniazid is not seen with

a.Rifampicin
b.Ethionamide
c.Cyclosporine
d.Ethambutol

Ans:b.Ethionamide


Explanation:Ref katzung 10/ed pg 772

213.Filgastrim is used in treatment of

a.Anaemia
b.Neutropenia
c.Malaria
d.Filarial

Ans:b.Neutropenia

Explanation:Filgastrim is a recombinant human granulocyte colony stimulating factor effective in the treatment of severe neutropenia.It mainly stimulates CFU-g to increase neutrophil production.(Ref Goodman &Gillman 11/ed pg 1440

212. Most common primary malignant tumour of long bones is

a.Osteosarcoma
b.Multiple myeloma
c.Ewings sarcoma
d.Metastatic carcinoma

Ans:a.Osteosarcoma

Explanation:osteosarcoma is the commonest primary malignant tumour of long bones and Multiple myeloma is the commonest primary malignant tumour. (Ref robbins 7th ed)

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