National Standard Examination in Biology (NSEB) Solved Paper 2016 Part-11

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Q: 68. Study the given illustration of a cell division. In which organ of the human body would this process take place?

Q 68 Image of Human Body of Metaphase-I and Two Daughter Cells

Q 68 Image of Human Body of Metaphase-I and Two Daughter Cells

Q 68 Image of Human Body of Metaphase-I and Two Daughter Cells

(A) Liver

(B) Spleen

(C) Bone marrow

(D) Gonad

Answer: N/A

Q: 69. From the T.S. of trunk shown in the diagram it can be predicted that the corresponding branch must be

Q 69 Diagram of T.S of the Trunk

Q 69 Diagram of T.S of the Trunk

Q 69 Diagram of T.S of the Trunk

(A) Bent in the direction of ‘X’

(B) Bent in the direction of ‘Y’

(C) Twisted through U → V axis

(D) Bearing the beating of wind and rain in Y → X direction

Answer: (B)

Q: 70. The role of luteinizing hormone (LH) in human male is

(A) Blocking the release of GnRH from pituitary

(B) Stimulating sertoli cells to promote spermatogenesis

(C) Stimulating Leydig’s cells to produce testosterone

(D) Modifying the signal produced by FSH in seminiferous tubule

Answer: (C)

Q: 71. Transcriptional activity of genes is regulated by promoter & enhancer sequences. Which of the following descriptions is correct?

(i) Promoter sequences are always cis acting while enhancer sequences can be trans acting

(ii) Both are located upstream from the structural gene that they regulate

(iii) TATA box is one type of promoter sequence

(iv) Of promoter sequence is controlled by transcription factors which are small RNA sequences

(A)

(B)

(C)

(D)

Answer: (D)

Q: 72. Consider an ecosystem where diatoms, copepods and small fish coexist. Which of the following statements is/are correct?

(i) The biomass pyramid of this ecosystem is likely to be inverted

(ii) The number pyramid of this ecosystem is likely to be upright

(iii) The energy pyramid of this ecosystem can be inverted depending on the season on the year

(A)

(B)

(C)

(D)

Answer: (A)

Q: 73. Which of the following defenses of the body against particles constitute innate immunity?

(i) Antimicrobial proteins

(ii) Mucous membrane

(iii) Antibodies

(iv) Phagocytic cells

(v) Inflammatory response

(iv) Cytotoxic lymphocytes

(A)

(B)

(C)

(D)

Answer: (D)

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