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Molecular Basis of Inheritance NEET PYQs
Class XII Biology
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NCERT Based
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NEET Practice
📘 Concept Based
📝 Exam Level
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50 questions in this chapter
Identify the statement which is incorrect.
A Sulphur is an integral part of cysteine.
B Glycine is an example of lipids.
C Lecithin contains phosphorus atom in its structure.
D Tyrosine possesses aromatic ring in its structure.
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Which is the basis of genetic mapping of human genome as well as DNA finger printing?
A Polymorphism in DNA sequence
B Single nucleotide polymorphism
C Polymorphism in hnRNA sequence
D Polymorphism in RNA sequence
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Name the enzyme that facilitates opening of DNA
helix during transcription.
A DNA ligase
B DNA helicase
C DNA polymerase
D RNA polymerase
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Which of the following statements is correct?
A Adenine pairs with thymine through two H-bonds.
B Adenine pairs with thymine through one H-bond.
C Adenine pairs with thymine through three H-bonds.
D Adenine does not pair with thymine.
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If the distance between two consecutive base pairs
is 0.34 nm and the total number of base pairs of a
DNA double helix in a typical mammalian cell is
6.6×109 bp, then the length of the DNA is
approximately:
A 2.0 meters
B 2.5 meters
C 2.2 meters
D 2.7 meters
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The first phase of translation is:
A Binding of mRNA to ribosome
B Recognition of DNA molecule
C Aminoacylation of tRNA
D Recognition of an anti-codon
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The specific palindromic sequence which is
recognized by EcoRI is:
A 5'-GAATTC-3'
3'-CTTAAG-5'
B 5'-GGAACC-3'
3'-CCTTGG-5'
C 5'-CTTAAG-3'
3'-GAATTC-5'
D 5'-GGATCC-3'
3'-CCTAGG-5'
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Purines found both in DNA and RNA are:
A Adenine and guanine
B Adenine and thymine
C Guanine and cytosine
D Cytosine and thymine
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Which of the following features of genetic code does allow bacteria to produce human insulin by
recombinant DNA technology?
A Genetic code is not ambiguous
B Genetic code is nearly universal
C Genetic code is redundant
D Genetic code is specific
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Expressed Sequence Tages (ESTs) refers to:
A Polypeptide expression
B DNA polymorphism
C Novel DNA sequences
D Genes expressed as RNA
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