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Free download in PDF Molecular Basis of Inheritance Multiple Choice Questions (MCQs) and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
With respect to microsatellite DNA which of the following is correct?
[A]
Tandem repeats
[B]
Dinucleotide repeats
[C]
100 bp units
[D]
Inaccurate duplicating
(2)
Genome – wide repeat unit are generally transposable elements.
(3)
Repeated DNA can be referred to as junk DNA.
(4)
The simpler the organism the more likely they are to have transposable elements.
(5)
Double-stranded structure of nucleic acid is the basic requirement for palindromic sequences.
(6)
Which of the following words represents a palindrome?
[A]
DUCK
[B]
MAMA
[C]
BOOM
[D]
MADAM
(7)
Which of the following will form a palindromic sequence?
[A]
ATTGCAAT
[B]
AGTCCTGA
[C]
GTTCCAAG
[D]
GTTGGAAC
(8)
Which of the following is affected by palindromic sequences?
[A]
Acetylation site
[B]
Phosphorylation site
[C]
Methylation site
[D]
Promoter site
(9)
Palindromic sequences play a very important role in gene manipulation.
(10)
Which of the following palindromes is not a restriction site?
[A]
GAATTC
[B]
TACGTA
[C]
CCTAGG
[D]
AGCT
(11)
Molecular cutters do not recognize the palindromic sequence.
(12)
Which of the following is an example of an inverted repeat?
[A]
ATTCGCGAAT
[B]
ATCGNNNNCGAT
[C]
TACCNNNNGGAT
[D]
AGCCNNNCCGA
(13)
Inverted repeat have a number of biological functions. Which of the following is a biological function of an inverted repeat?
[A]
Diseases
[B]
Central dogma
[C]
Cellular metabolism
[D]
Genetic stability
(14)
Most commonly known hairpin structures are found in _____________
[A]
DNA
[B]
mRNA
[C]
tRNA
[D]
rRNA
(15)
Which of the following does not promote stability in stem-loop structure?
[A]
Length of the stem
[B]
Size of the loop
[C]
A : U base pairing
[D]
π orbital of aromatic ring
Answer: A : U base pairing
(16)
What is the minimum number of bases required for loop stability?
(17)
Which of the following does not contain a stem-loop structure?
[A]
tRNA
[B]
Pseudoknot
[C]
Ribozyme
[D]
rRNA
(18)
Which of the following cannot be used for the separation of nucleic acids?
[A]
SDS – PAGE
[B]
PAGE
[C]
Northern blotting
[D]
PAGE
(19)
The polymerization of the gel used in PAGE occurs between polyacrylamide and ____________
[A]
N, N – acrylamide
[B]
Bisacrylamide
[C]
N – methyleneacrylamide
[D]
N, N – methylene bisacrylamide
Answer: N, N – methylene bisacrylamide
(20)
If DNA is digested by endonucleases in four sites giving rise to fragments of which two are equal in length how many bands would be seen after electrophoresis?
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