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11.1The Living World1411.2Biological Classification7711.3Plant Kingdom6611.4Animal Kingdom3911.5Morphology of Flowering Plants4111.6Anatomy of Flowering Plants2511.7Structural Organisation in Animals911.8Cell: The Unit of Life10511.9Biomolecules2411.10Cell Cycle and Cell Division6711.11Photosynthesis in Higher Plants6111.12Respiration in Plants4511.13Plant Growth and Development4211.14Breathing and Exchange of Gases4611.15Body Fluids and Circulation5711.16Excretory Products and their Elimination2911.17Locomotion and Movement3011.18Neural Control and Coordination1611.19Chemical Coordination and Integration4612.1Sexual Reproduction in Flowering Plants8012.2Human Reproduction3512.3Reproductive Health2812.4Principles of Inheritance and Variation10012.5Molecular Basis of Inheritance12712.6Evolution3012.7Human Health and Disease6612.8Microbes in Human Welfare3612.9Biotechnology: Principles and Processes6312.10Biotechnology and its Applications4512.11Organisms and Populations2812.12Ecosystem2812.13Biodiversity and Conservation60
Molecular Basis of Inheritance
showing 127- 2026In the *lac* operon, the *z* gene codes for :
- 2026Which of the following statements about lac-operon is correct?
- 2026167. Which of the following enzymes synthesizes precursor mRNA?
- 2025Who proposed that the genetic code for amino acids should be made up of three nucleotides?
- 2025Given below are two statements: Statement I: In the RNA world, RNA is considered the first genetic material evolved to carry out essential life proces...
- 2025Match List-I with List-II List - I A. Alfred Hershey and Martha Chase B. Euchromatin C. Frederick Griffith D. Heterochromatin List - II I. Streptococc...
- 2025Which chromosome in the human genome has the highest number of genes?
- 2025Histones are enriched with -
- 2025Match List-I with List-II List - I A. Adenosine B. Adenylic acid C. Adenine D. Alanine List - II I. Nitrogen base II. Nucleotide III. Nucleoside IV. A...
- 2024A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down stream end;
- 2024Which of the following statement is correct regarding the process of replication in E.coli?
- 2024Match List I with List II List I A. Frederick Griffith B. Francois Jacob & Jacque Monod C. Har Gobind Khorana D. Meselson & Stahl List II I. Genetic c...
- 2024Given below are two statements regarding RNA polymerase in prokaryotes. Statement I : In prokaryotes, RNA polymerase is capable of catalysing the proc...
- 2023In which disorder change of single base pair in the gene for beta globin chain results in change of glutamic acid to valine?
- 2023Name the component that binds to the operator region of an operon and prevents RNA polymerase from transcribing the operon.
- 2023Given below are two statements : Statement I : RNA being unstable, mutate at a faster rate. Statement II : RNA can directly code for synthesis of prot...
- 2023Which one of the following acts as an inducer for lac operon?
- 2023With reference to Hershey and Chase experiments, select the correct statements. (A) Viruses grown in the presence of radioactive phosphorus contained ...
- 2023Unequivocal proof that DNA is the genetic material was first proposed by
- 2023Statement I: RNA mutates at a faster rate. Statement II: Viruses having RNA genome and shorter life span mutate and evolve faster. In the light of the...
- 2023How many different proteins does the ribosome consist of?
- 2022List-I | List-II (a) Bacteriophage φ × 174 | (i) 48502 base pairs (b) Bacteriophage Lambda | (ii) 5386 nucleotides (c) Escherichia coli | (iii) 3.3 × ...
- 2022[DIAGRAM: Base pairing between an mRNA codon 5' UAC 3' and a tRNA anticodon 3' AUG 5', with complementary bases U-A, A-U, and C-G and 5' and 3' ends l...
- 2022The process of translation of mRNA to proteins begins as soon as :
- 2022DNA polymorphism forms the basis of :
- 2021Identify the correct statement.
- 2021DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as
- 2021Which of the following RNAs is not required for the synthesis of protein?
- 2020If 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 ...
- 2020Which of the following statements is correct?
- 2019Which scientist experimentally proved that DNA is the sole genetic material in bacteriophage?
- 2019Under which of the following conditions will there be no change in the reading frame of following mRNA? 5'AACAGCGGUGCUAUU3'
- 2018Select the correct match
- 2018The experimental proof for semiconservative replication of DNA was first shown in a
- 2017The final proof for DNA as the genetic material came from the experiments of:
- 2017DNA fragments are: [NEET 2017]
- 2017DNA fragments are
- 2017The final proof for DNA as the genetic material came from the experiments of
- 2016Taylor conducted the experiments to prove semiconservative mode of chromosome replication on
- 2016The equivalent of a structural gene is
- 2016Which of the following rRNAs acts as structural RNA as well as ribozyme in bacterial?
- 2016A molecule that can act as a genetic material must fulfill the traits given, except
- 2016DNA-dependent RNA polymerase catalyzes transcription on the strand of the DNA which is called the
- 2016Which of the following is required as inducer(s) for the expression of Lac operon?
- 2016A molecule that can act as a genetic material must fulfill the traits given below, except
- 2016DNA-dependent RNA polymerase catalyses transcription on one strand of the DNA which is called the
- 2016Which one of the following is the starter codon?
- 2016Taylor conducted the experiments to prove semi-conservative mode of chromosome replication on
- 2015Which of the following biomolecules does have a phosphodiester bond?
- 2014Which one of the following is wrongly matched?
- 2013[DIAGRAM: Central dogma of molecular biology showing DNA with a self-loop for replication, an arrow A from DNA to mRNA, an arrow B from mRNA to Protei...
- 2013Uridine, present only in RNA is a
- 2013[DIAGRAM: A flow diagram of genetic information showing DNA with a self-loop arrow, then DNA → mRNA labeled A, mRNA → Protein labeled B, and an arrow ...
- 2012Removal of introns and joining of exons in a defined order during transcription is called
- 2012Which one of the following is not a part of a transcription unit in DNA?
- 2012[DIAGRAM: A five-membered furanose ring of ribose sugar with one oxygen atom in the ring, a CH2OH group, hydroxyl groups at the 2' and 3' carbons, and...
- 2012The given diagrammatic representation shows one of the categories of small molecular weight organic compounds in the living tissues. Identify the cate...
- 2011What are the structures called that give an appearance as 'beads-on-string' in the chromosomes when viewed under electron microscope?
- 2011The unequivocal proof of DNA as the genetic material came from the studies on a
- 2011Which one of the following also acts as a catalyst in a bacterial cell?
- 2011Peptide synthesis inside a cell takes place in
- 2010Which one of the following does not follow the central dogma of molecular biology?
- 2010The 3'-5' phosphodiester linkages inside a polynucleotide chain serve to join
- 2010The lac operon consists of
- 2010Which one of the following statements about the particular entity is true?
- 201044. The 3'-5' phosphodiester linkages inside a polynucleotide chain serve to join
- 2009Semi-conservative replication of DNA was first demonstrated in
- 2009Removal of introns and joining the exons in a defined order in a transcription unit is called
- 2009What is not true for genetic code?
- 2008Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
- 2008Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
- 200855. Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
- 2006Amino acid sequence, in protein synthesis is decided by the sequence of
- 2005Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
- 2004[DIAGRAM: Clover leaf model of transfer RNA (tRNA) showing amino acid attachment site at the 3' CCA end, 5' G end, anticodon loop, aminoacyl synthetas...
- 2004Which form of RNA has a structure resembling clover leaf?
- 2003What does "lac" refer to in what we call the lac operon?
- 2003Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' cod...
- 2003During transcription, the DNA site at which RNA polymerase binds is called
- 2003In the genetic code dictionary, how many codons are used to code for all the 20 essential aminoacids?
- 200374. What does "lac" refer to in what we call the lac operon ?
- 2002[DIAGRAM: Structure of the lac operon in Escherichia coli showing regulator gene, promoter, operator, and structural genes; the regulator gene produce...
- 2002Which of the following enzymes are used to join bits of DNA?
- 2002Exon part of mRNAs have code for
- 2002In *E. coli*, during lactose metabolism repressor binds to:
- 200284. Out of 64 codons, 61 codons code for 20 types of amino acid. It is called
- 2001Sickle cell anaemia induce to (2001)
- 2001mRNA is synthesised on DNA template in which direction
- 2001Sickle cell anaemia is induced due to
- 2000Method of DNA replication in which two strands of DNA separate and synthesize new strands
- 2000Which of the following is initiation codon?
- 2000Anticodon occurs in
- 2000In three dimensional view the molecule of t RNA is
- 2000Similarity in DNA and RNA is that
- 2000In three dimensional view the molecule of tRNA is
- 1999Initiation codon in eukaryotes is
- 1999In DNA, when AGCT occurs, their association is as per which of the following pair?
- 1999The proteins are synthesized at
- 1997The codons causing chain termination are
- 1997The RNA that pick up specific amino acid from amino acid pool in the cytoplasm to ribosome during protein synthesis is called
- 1996Which of the following serves as a terminal codon?
- 1995The most striking example of point mutation is found in a disease called (1995)
- 1995The lac operon is an example of
- 1995An environmental agent, which triggers transcription from an operon, is a
- 1995In split genes, the coding sequences are called
- 1995Anticodon is an unpaired triplet of bases in an exposed position of
- 1995The most striking example of point mutation is found in a disease called
- 1994'Lac operon' in E. coli, is induced by
- 1994'Lac operon' in *E. coli*, is induced by
- 1994Initiation codon in eukaryotes is
- 1993Initiation codon of protein synthesis (in eukaryotes) is
- 1993Who proved that DNA is basic genetic material?
- 1993Because most of the amino acids are represented by more than one codon, the genetic code is
- 1993The process of translation is
- 1993133. The process of translation is
- 1992In RNA, thymine is replaced by
- 1992Adenine is
- 1992Ribosomes are the centre for
- 1991The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA
- 1991A nucleotide is formed of
- 1991DNA is composed of repeating units of
- 1991The basic unit of nucleic acid is
- 199171. The basic unit of nucleic acid is
- 1991The process of transfer of genetic information from DNA to RNA / formation of RNA from DNA
- 1990In the genetic dictionary, there are 64 codons as
- 1990An octamer of 4 histones complexed with DNA forms
- 1988RNA does not possess
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