List of top Plant Biotechnology Questions on Molecular Biology asked in ICAR AIEEA (PG)

Which one of the following is not true of the genetic code?
C value refers to the DNA content in haploid cell and has no correlation with the complexity of the organism. Which of the following explains this C value paradox?
Which one of the folowing is not true of the attenuation that controls gene expression?
In eukaryotes, the immediate product of transcription of structural genes is
If nucleotide sequence on one strand is given, the nucleotides on the other strand can be found out because of
In lac operon, the regulatory protein called repressor binds to :
Which of the following statement(s) is/are true:
(A). RNA polymerase lacks nuclease activity.
(B). The error rate of RNA synthesis much higher than DNA synthesis.
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Expression of a gene can be measured by
Which of the following formulae may be used to estimate the concentration of RNA by UV spectrophotometer
Which of the following condition will favour synthesis of $\beta$-galactosidase in E. coli cells
Conventionally the -10 ($5'$-TATAAT) and -35 ($5'$-TTGACA) regions are denoted in
The products of which of the following pair of nif genes control the expression of other nif genes?
Match List-I with List-II

List-I (Form of DNA) & List-II (Characteristic of DNA)
(A). A-DNA & (II). Short, broad and right-handed
(B). B-DNA & (III). Longer, thinner and right-handed
(C). Z-DNA & (IV). Anti conformation at Cytosine and syn at Guanine
(D). H-DNA & (I). Triplex DNA

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Examples of Non-climacteric fruits:
(A). Lemon
(B). Cherry
(C). Guava
(D). Grape
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The inter-chelating agent used as a stain for visualizing DNA in a UV spectrophotometer is
The enzyme that displaces histone octamer during transcription is
Identify the nucleotide cap that is attached at the 5'end of mRNA
DNA ligase is the molecular glue or gum, which joins together the cut-ends of DNA by creating
Which of the following statement is most correct in DNA replication
Terminating or stop codons are
The important features of Shine Dalgarno Sequence are
(A). Determine Transcription initiation site
(B). Distinct means of determining the translational start site in prokaryote
(C). Complementary to part of the 3' end of 16S rRNA
(D). Termination recognition in prokaryotes
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Centrioles are present in the cytoplasm of the cells of the organism
Match List-I with List-II:
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Match List-I with List-II:
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Which of the following is correct statement for Genetic Code:
(A). It uses ribonucleotide bases to make a codon.
(B). It uses deoxyribonucleotide bases to make a codon.
(C). A single coding dictionary is used by almost all viruses, prokaryotes, archaea, and eukaryotes
(D). During translation, the codons are read one after the other with no breaks between them until a stop signal is found.
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