@⇒ Nucleic acids ⇒ Biochemistry ⇒ Medical Science Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	Nucleoside is a pyrimidine or purine base
A.	covalently bonded to a sugar [Correct Answer]
B.	ionically bonded to a sugar [Wrong Answer]
C.	hydrogen bonded to a sugar [Wrong Answer]
D.	none of the above [Wrong Answer]
View Answer 3 -2 Explanation:- Answer : A Discuss it below : Click here for more comments


Q2.	The unfavourable free energy associated with not satisfying a hydrogen bond after formation of the double helix is approximately
A.	10 kJ/mol [Wrong Answer]
B.	20 kJ/mol [Correct Answer]
C.	25 kJ/mol [Wrong Answer]
D.	30 kJ/mol [Wrong Answer]
View Answer 3 -3 Explanation:- Answer : B Discuss it below : Click here for more comments


Q3.	In gel electrophoresis, what fragments will move most quickly through a gel?
A.	Large fragments [Wrong Answer]
B.	Small fragments [Correct Answer]
C.	Large genome [Wrong Answer]
D.	None of these [Wrong Answer]
View Answer 2 -2 Explanation:- Answer : B Discuss it below : Click here for more comments


Q4.	Thymidine
A.	can participate in hydrophobic interactions due to its methyl group [Wrong Answer]
B.	is replaced by uracil in RNA [Wrong Answer]
C.	normally forms two hydrogen bonds with adenosine [Wrong Answer]
D.	all of the above [Correct Answer]
View Answer 6 -6 Explanation:- Answer : D Discuss it below : Click here for more comments


Q5.	The most stabilizing force for nucleic acids is
A.	hydrogen bonds [Wrong Answer]
B.	electrostatic bond [Wrong Answer]
C.	Van der Waals [Correct Answer]
D.	conformational entropy [Wrong Answer]
View Answer 2 -4 Explanation:- Answer : C Discuss it below : Click here for more comments

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