National Standard Examination in Biology (NSEB) Solved Paper 2016 Part-5

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Q: 31. Immunoglobulin G molecule is shown in the accompanying diagram. If it is treated with Mercaptoethanol (reducing agent)

Q 31 Immunoglobulin G Molecule is shown in the Accompanying Diagram

Immunoglobulin G Molecule is Shown in the Accompanying Diagram

Q 31 Immunoglobulin G Molecule is shown in the Accompanying Diagram

Result will be the production of:

(A) Single peptide molecule without affinity for antigen

(B) Total of four polypeptide chains

(C) Two polypeptide chains one with Fab portion & another with Fe

(D) Six fragments with each with either Fe or Fab region

Answer: (B)

Q: 32. The cut stem of two identical branches of the same mother plant were inserted in bottles containing liquid X and Y for a week to show the result as seen in the accompanying diagram. The liquid ‘X’ and ‘Y’ may be:

Q 32 Image of Branches

Image of Branches

Q 32 Image of Branches

(A) Water and physiologically balanced solution

(B) Water and weak solution of abscisic acid

(C) Water and weak solution of Auxin

(D) Weak salt solution and weak solution of ethylene

Answer: (B)

Q: 33. Which of the extra-embryonic membranes is/are involved in the gaseous exchange of the embryo?

(i) Amnion

(ii) Chorion

(iii) Allantois

(iv) Yolk sac

(A)

(B)

(C)

(D)

Answer: (D)

Q: 34. In the accompanying figure the exposure of plant to cycles of light and darkness along with the following responses has been shown. The plant must be a-

Q 34 Image of Short day Plant

Image of Short Day Plant

Q 34 Image of Short day Plant

(A) Long day plant

(B) Short day plant

(C) Day neutral plant

(D) Gibberellins treated plant

Answer: (B)

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