Which of the following statements wrongly represents the nature of smooth muscle?
(A)These muscle have no striations
(B)They are involuntary muscles
(C)Communication among the cells is performed by intercalated discs
(D)These muscles are present in the wall of blood vessels

The organelles that are included in the endomembrane system are :
(A)Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes
(B)Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles
(C)Golgicomplex, Mitochondria, Ribosomes and Lysosomes
(D)Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes

With regard to insulin choose correct options.
(a) C-peptide is not present in mature insulin.
(b) The insulin produced by rDNA technology has C-peptide.
(c) The pro-insulin has C-peptide.
(d) A-peptide and B-peptide of insulin are interconnected by disulphide bridges.
Choose the correct answer from the options given below.
(A)
(b) and
(d) only
(B)
(b) and
(c) only
(C)
(a),
(c) and
(d) only
(D)
(a) and
(d) only

Veneral diseases can spread through :
(a) Using sterile needles
(b) Transfusion of blood from infected person
(c) Infected mother to foetus
(d) Kissing
(e) Inheritance
Choose the correct answer from the options given below.
(A)
(a),
(b) and
(c) only
(B)
(b),
(c) and
(d) only
(C)
(b) and
(c) only
(D)
(a) and
(c) only

Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.
(A)High `` pO _{2} `` , low `` pCO _{2} `` , less `` H ^{+} `` , lower temperature
(B)Low `` pO _{2} `` , high `` pCO _{2} `` , more `` H ^{+} `` , higher temperature
(C)High `` pO _{2} `` , high `` pCO _{2} `` , less `` H ^{+} `` , higher temperature
(D)Low `` pO _{2} `` , low `` pCO _{2} `` , more `` H ^{+} `` , higher temperature

Match the following:

In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased ?
(A)50%
(B)75%
(C)25%
(D)100%

Match List-I with List-II.

Sphincter of oddi is present at:
(A)Junction of hepato-pancreatic duct and duodenum
(B)Gastro-oesophageal junction
(C)Junction of jejunum and duodenun
(D)Ileo-caecal junction

Which of the following is not an objective of Biofortification in crops ?
(A)Improve protein content
(B)Improve resistance to diseases
(C)Improve vitamin content
(D)Improve micronutrient and mineral content

Erythropoietin hormone which stimulates R.B.C. formation is produced by:
(A)Alpha cells of pancreas
(B)The cells of rostral adenohypophysis
(C)The cells of bone marrow
(D)Juxtaglomerular cells of the kidney

Which one of the following organisms bears hollow and pneumatic long bones ?
(A)Neophron
(B)Hemidactylus
(C)Macropus
(D)Ornithorhynchus

The centriole undergoes duplication during:
(A)S-phasc
(B)Prophase
(C)Metaphase
(D) `` G_{2} `` phase

Dobson units are used to measure thickness of:
(A)CFCs
(B)Stratosphere
(C)Ozone
(D)Troposphere