Assertion: S.A. node induces excitatory impulses in heart.

Reason: S.A. node is self excitatory.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Assertion: Organ of Corti rests on tectorial membrane.

Reason: It helps to maintain equilibrium of body

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Tendon and ligament are example of

• dense regular connective tissue-

• dense irregular connective tissue

• loose connective tissue 

• specialised connective tissue.

If medulla oblongata is destroyed then which of the following functions will be effected

• No thermoregulation

• No vision

• No memory

• No response when pricked with needle

Which of the following statements is correct ?
1. Common cold- Droplet Infection.
2. Typhoid - Contaminated food & water.
3. AIDS- Shaking hands.
4. Ringworm - Using infected towels.

• 1 and 2

• 3 and 4

• 1 and 3

• 1,2 and 4

Which of the following statements is correct

• Catalytic converter can separate particulate matter of diameter less than 2.5 micrometers.

• Histones are acidic in nature that forms core for DNA packaging.

• Lactobacillus is not present in dough used in idli formation.

• Template with polarity 5'$\to$ 3' has continuous DNA replication.

Which of the following statements is correct

• Lion and leopard show convergent evolution.

• Cryptic camouflage is seen in Biston betularia

• Natural selection is responsible for extinction of dinosaurs.

• Homo habilis and Homo erectus are closely related.

What is the source of EcoRI

• Escherichia coli R I

• Escherichia coli R I 13

• Escherichia coli R Y 13

• Escherichia coli RX 13

39.

First clinical gene therapy was given in 1992 to a 4 years old girl for

• adenine deficiency

• growth deficiency

• adenosine deaminase deficiency

• adenosine deficiency

What are labelled phases A, B and C in given sigmoidal growth curve.

• A	B	C
  stationery	Log	Lag

• A	B	C
  Lag	stationery	Log

• A	B	C
  Log	Lag	stationery

• A	B	C
  Lag	Log	stationery