HSSC TGT Science Date 29/4/2023 Evening ShiftTotal Questions: 10071. Amino acids are joined by which bond?(a) Hydrogen bond(b) Covalent bond(c) Peptide bond(d) None of the above(e) UnattemptedCorrect Answer: (c) Peptide bond72. 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) UnattemptedCorrect 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) UnattemptedCorrect Answer: (a) Fifty years74. 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) UnattemptedCorrect Answer: (b) 8 nucleate stage76. 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) UnattemptedCorrect 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) UnattemptedCorrect Answer: (a) 0.5 Ω78. 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) UnattemptedCorrect Answer: (a) Vagina79. Which of the following binds to the promoter and initiates transcription (initiation)?(a) RNA polymerase(b) Renin(c) Restriction endonuclease(d) Ligase(e) UnattemptedCorrect Answer: (a) RNA polymerase80. ............ is a radioactive isotope with half-life 5770 years:(a)(b)(c)(d)(e)Correct Answer: (b)Submit Quiz« Previous12345678910Next »
