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HSSC TGT Science Date 29/4/2023 Evening Shift
📆 November 23, 2024
Total Questions: 100
61.
A typical nucleosome contains:
(a) 200 bp of DNA helix
(b) 2700 bp of DNA helix
(c) 20 bp of DNA helix
(d) 10 bp of DNA helix
(e) Unattempted
Correct Answer:
(a) 200 bp of DNA helix
62.
Motion of a moving electron is not affected by:
(a) An electric field applied in the direction of motion
(b) Magnetic field applied perpendicular to the direction of motion
(c) An electric field applied perpendicular to the direction of motion
(d) Magnetic field applied in the direction of motion
(e) Unattempted
Correct Answer:
(d) Magnetic field applied in the direction of motion
63.
The ovule is a small structure attached to the placenta by means of a stalk called:
(a) Chalaza
(b) Micropyle
(c) Funicle
(d) Hilum
(e) Unattempted
Correct Answer:
(c) Funicle
64.
Which of the following is the first genetic material?
(a) DNA
(b) Both DNA and RNA
(c) Histones
(d) RNA
(e) Unattempted
Correct Answer:
(d) RNA
65.
Common name of C₆H₅OCH₃ is:
(a) Acetone
(b) Anisole
(c) Acetophenone
(d) Ether
(e) Unattempted
Correct Answer:
(b) Anisole
66.
Overall ability of the host to fight the disease-causing organisms, conferred by the immune system, is called:
(a) Immunity
(b) Excretion
(c) Transpiration
(d) Respiration
(e) Unattempted
Correct Answer:
(a) Immunity
67.
Lenz's law is a consequence of the law of conservation of:
(a) Charge
(b) Energy
(c) Mass
(d) Momentum
(e) Unattempted
Correct Answer:
(b) Energy
68.
The energy of a charged capacitor is given by the expression (q = charge on the conductor and C is its capacity):
(a)
(b)
(c)
(d)
Correct Answer:
(a)
69.
Parturition is induced by a complex:
(a) ATP (Adenosine Triphosphate)
(b) Neuroendocrine mechanism
(c) Neuroexocrine mechanism
(d) None of the above
(e) Unattempted
Correct Answer:
(b) Neuroendocrine mechanism
70.
The separated bands of DNA are cut out from the agarose gel and extracted from the gel piece. This step is known as:
(a) Recombination
(b) Elution
(c) Ligation
(d) Lysis
(e) Unattempted
Correct Answer:
(b) Elution
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