Solved Past Papers MCQs of Lecturer Zoology for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS, and other academic entry tests and jobs tests.
51. Plasmolysis is the shrinkage of protoplast due to ……. of water
A) Endosmosis
B) Diffusion
C) Active transport
D) Ex-osmosis
52. Uric acid is the chief nitrogenous waste of
A) Fish and Amphibian
B) Amphibians and Reptiles
C) Reptiles and Birds
D) Birds and Mammals
53. Linker region have …… base pairs when nucleosomes repeat after every 200 bp
A) 34
B) 44
C) 54
D) 64
54. Nucleic acids absorb ultraviolet light at
A) 320 nm
B) 260 nm
C) 480 nm
D) 660 nm
55. The breakdown of alveoli occurs in
A) mRNA
B) rRNA
C) tRNA
D) All of these
66. Sahara desert demark the regions
A) Ethiopian and Palearctic
B) Oriental and Neotropical
C) Ethiopian and Oriental
D) Palearctic and Nearctic
67. An endemic species is ……
A) Epidemic disease
B) A taxonomist’s mistake
C) A taxonomist’s choice
D) Which is found uniquely in one place
68. The specimen on which the taxonomic description is based is
A) Holotype
B) Homotype
C) Heterotype
D) Homonym
69. This is not a characteristic of primates
A) Cline
B) Phenon
C) Deme
D) Axon
71. Wildlife of Pakistan includes a unique aquatic mammal protected by various wildlife agencies
A) Blue Dolphin
B) Porpoise
C) Sea Whale
D) Blind Dolphin
72. An organism that has escaped from domestication and returned, partly or wholly, to a wild state is called
A) Native
B) Vulnerable
C) Ferals
D) Semi-wild
73. When a single gene affects two or more traits, the phenomenon is called
A) Transposition
B) Transduction
C) Epistasis
D) Pleiotropy
74. This is a polyunsaturated fatty acid
A) Oleic acid
B) Linoleic acid
C) Palmitic acid
D) Palmitoleic acid
75. Insulin has 51 amino acids, which are arranged in two polypeptide chains having
A) 20 & 31 amino acids
B) 11 & 40 amino acids
C) 21 & 31 amino acids
D) 25 & 26 amino acids
