PPSC Lecturer Biology 2022 Paper
1.
Pearl forming layer? Nacre
2.
Nehro report represented by whom? Motilal
Nehru
3.
fight and flight response by which system? Sympathetic
4.
Peace and war novel writer name? Leo Tolstoy
5.
Which of the following section does not exist in
a slide layout? Animation
6.
Natural bacteria used in mining this process is
called? Biomining/BioLeaching
7.
Mostly mollusks are? Marine
8.
Which one is not mollusk? Sea feather
9.
The ages of A and B are in the ratio 6:5 and the
sum of their ages is 44 years. What will be the ratio of their age after 8
years? 28 years
10.
The receptor which detects pressure? Baroreceptors
11. Hormone not secreted by anterior lobe of pituitary? ADH
12.
Protein synthesis takes place in organelle? Ribosomes
13.
Chromosomal theory was proposed by? Theodor
Boveri and Walter Sutton
14.
Source of protein (meat, eggs, legumes) all of
these
15.
Chromosome term was coined by? W. Waldeyer
coined the term "chromosome" in 1888.
16.
Yogurt and Cheese are made by? Fermentation
17.
ABO blood group system (e.g. AB blood group) is
a type of? Codominance
18.
Water used in Agriculture? --- freshwater
19.
Anticodon present on? tRNA
20.
Mosquito causing dengue? Aedes aegypti
21.
The distance between two consecutive DNA base
pairs is? 0.34 nm
22.
The part of bacteria which have antibiotic
resistance genes? Plasmid
23.
Which amino acid enters in urea cycle? Ornithine
24.
Fight and Flight response? Sympathetic
25.
Fruit ripening plant hormone? Ethylene
26.
Which characteristic is present in gymnosperms but
not present in other seeded plants? Exposed Seeds
27.
Which are nonvascular plants? Bryophytes
28.
Qazi k Ghar k Chohay syany hoty hn.
29.
Something: Somebody
30.
Sexual Reproduction In flowering plants was
discovered by? Camerarius
31. Disease-causing agent? Trypanosoma
32.
Changes in mRNA (Methylation and etc) after
formation in a eukaryotic cell? Post-transcriptional modifications
33.
mRNA formation takes place in? Nucleus
34.
Cri du chat syndrome is due to which chromosome
no.? 5
35.
Hardy Weinberg Problem? 0.42
36.
Single user system? DOS
37.
At room temperature Water is found in a liquid
state. This is because? hydrogen bonds
38.
Production of polysaccharides is very common to
bacteria, yeasts, and fungi? Dextran
39.
who sequenced amino acids in insulin for the
first time? Fred Sanger
40.
First vaccine formed by recombinant DNA
technology? Hepatitis B
41.
Anticodon of GCA? CGU
42.
Alternation of generation: Liverworts, Hornworts
etc? All of these
43.
Grand Jamia Mosque Karachi completion date? 2021
44.
Women are not in committee (into, over, to)? None
of these
45.
In Sugar Cane Which Pathway is found? Hatch
and Slack
46.
Tirich Mir is the highest peak of? the
northern Hindu Kush
47.
Peace of war?? Tolstoy
48.
Zig-Zag Pattern in DNA is due to? Histone Core (Not confirmed)
49.
Asymmetrical animals? Sponges
50.
Two polypeptide chains are joined by hydrogen
bonds to produce? β-pleated sheet
51.
Three polypeptides join to form which structure?
Quaternary structure
52.
In α-helix secondary structure, hydrogen bonds
lie between the imide group of one amino acid and the carbonyl group of? 4th amino
acid
53.
The Catherine Palace is in? St.
Petersburg, Russia.
54.
Which of the following techniques is used to determine
the protein structures? X-ray crystallography
55.
Sugar consumption per capita reached 21.1
kg in 2019 in Pakistan, according to Faostat. (Not Confirmed)
56.
A disease caused by an autosomal primary
nondisjunction? Down’s Syndrome
57.
Which of the following are the main characteristic
features of an Insect? Three pairs of legs
58.
Law of independent assortment follows? (9.3.3.1
ratio)
59.
Who Presented Poor Men’s budget in 1946? Liaquat
Ali
60.
Pair of Sex chromosomes in humans? 1 pair
61.
In which stage of meiosis, crossing over takes
place? Meiotic-1
62.
Polygenic traits controlled by? Multiple alleles controlling one trait
63.
Not Conjugated Protein? Complete protein
64.
Not extraembryonic membrane? Somite
65.
The most natural habitat is destroyed by? Human
Activities
66.
Relative location of genes on chromosomes? Genome
Mapping
67.
The computational methodology that tries to find
the best matching between two molecules, a receptor and ligand is called? Molecular
docking
68. Not natural predators of BPH? Red Ants
70. Which of the following statements is true about the complete proteins? (a) High-protein foods that stabilize body weight (b) Food that has a balanced amount of fat and protein (c) Foods that provide all the amino acids that the body needs
(d) All of the above
71.
Disease due to Deficiency of protein? All of
these
72.
The first step in Photosynthesis? The excitement of an electron of chlorophyll by a photon of light
73.
The least level of chromosome organization is? Nucleosome
74.
Monotreme character? Egg-laying
75.
Anticodon for G according to wobble pair? U
76.
In pencil large amount of ____ is present? Graphite
77.
If we see the sky from another planet its colour? Black
78.
Correct Indirect: He said that the king was
coming then.
79.
Transfer of naked DNA between bacteria? Transformation
80.
Ti plasmid last if agrobacteria temperature? Above
29/26 C
81.
Pesticides involve chemicals? insecticides,
herbicides, rodenticides, and. fungicides.
82.
Technique can’t determine protein structure? MRI
83.
Co-enzymes are formed from? Vitamins
84.
In Mitochondria ____ process? Beta Oxidation
of Fatty acids
85.
The hardest material in teeth? Enamel
86.
The Hormone not Secreted by the anterior lobe of the Pituitary gland? ADH
87.
Screen size of Tv/LCD increases from 2005-2011? 0.5
88.
The gastric medium? Acidic
89.
ATP Synthesis? Substrate level
Phosphorylation and Chemiosmosis
90.
Which organelle absorbs visible light? Chloroplast
91.
Intervening sequences are? Introns
92.
Mehsoor? Ghairna
93. Sky colour from other planets is: Black
94. Imperative verbs are verbs that create an imperative sentence (i.e. a sentence that gives an order or command)
Plants are transformed more quickly than animals because? their cells are easy to culture in test tubes and Petri plates
95. Same type of chromosomes after duplication: Paralog
96. Spicule-producing cells of sponges are: scleroblast
97.
Total No.
Of ATP: 38 (F.Sc Biology/36 (Lehninger Biochemistry)
98.
The
enzyme which reverses DNA Damage was discovered by?? Ans not known.
99. Difference between Adsorption and Partition
Chromatography is? Stationary Phase
100. Forward
genetics refers to the approach of determining the genetic basis
responsible for a phenotype
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