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HSSC TGT Science Date 29/4/2023 Evening Shift
📆 November 23, 2024
Total Questions: 100
71.
Amino acids are joined by which bond?
(a) Hydrogen bond
(b) Covalent bond
(c) Peptide bond
(d) None of the above
(e) Unattempted
Correct Answer:
(c) Peptide bond
72.
If a wire is stretched to make it 0.1% longer, its resistance will:
(a) Increase by 0.05%
(b) Decrease by 0.05%
(c) Decrease by 0.2%
(d) Increase by 0.2%
(e) Unattempted
Correct Answer:
(a) Increase by 0.05%
73.
Sperm formation continues even in old men, but formation of ovum ceases in women around the age of:
(a) Fifty years
(b) Seventy years
(c) Sixty years
(d) Forty years
(e) Unattempted
Correct Answer:
(a) Fifty years
74.
The mass of an electron is:
(a)
(b)
(c)
(d)
(e)
Correct Answer:
(b)
75.
After which stage, cell walls are laid down leading to the organization of the typical female gametophyte or embryo sac?
(a) 4 nucleate stage
(b) 8 nucleate stage
(c) 5 nucleate stage
(d) 64 nucleate stage
(e) Unattempted
Correct Answer:
(b) 8 nucleate stage
76.
In Rutherford scattering experiment, what will be the correct angle for α scattering for an impact parameter b=0?
(a) 90°
(b) 180°
(c) 0°
(d) 270°
(e) Unattempted
Correct Answer:
(b) 180°
77.
By a cell, a current of 0.9 A flows through a 2 Ω resistor and 0.3 A through a 7 Ω resistor. The internal resistance of the cell is:
(a) 0.5 Ω
(b) 2 Ω
(c) 12 Ω
(d) 1 Ω
(e) Unattempted
Correct Answer:
(a) 0.5 Ω
78.
The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood vessels, which forms liquid that comes out through:
(a) Vagina
(b) Prostate gland
(c) Urethra
(d) Penis
(e) Unattempted
Correct Answer:
(a) Vagina
79.
Which of the following binds to the promoter and initiates transcription (initiation)?
(a) RNA polymerase
(b) Renin
(c) Restriction endonuclease
(d) Ligase
(e) Unattempted
Correct Answer:
(a) RNA polymerase
80.
............ is a radioactive isotope with half-life 5770 years:
(a)
(b)
(c)
(d)
(e)
Correct Answer:
(b)
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