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Q.97 Nucleosomes are made up of DNA and histones. Histones undergo various kind ofmodifications by different groups of proteins. They are known as histone writers,readers and erasers. Which of the […]

Q.96 What would be the number of genotypes and phenotypes, respectively, from a crossbetween genotypes AaBBCcDd and AaBBCcDd ? Assume independent assortmentand simple dominant–recessive relationship in each gene pair.(A) 8 […]

Q.95 Match the molecules in Column-I with their correct property/function in Column-II Column-I Column-II P. RNase P Q. RNA Polymerase-I R. siRNA S. Guide RNA 1. rRNA gene transcription 2. […]

Q.94 Match the following human diseases in Column-I with their causal organism in Column-II Column-I Column-II P. Sleeping sickness 1. Trypanosoma cruzi Q. Chagas disease 2. Trypanosoma brucei R. Elephantiasis […]

  Q.93 Match the molecules in Column-I with their properties/functions mentioned in Column-II Column-I Column-II P. IgM 5. Contains ten heavy and light chains Q. IgE 4. Associated with allergic […]

Q.92 A PCR was setup to amplify a 500 nucleotides–long DNA. The dNTPs in thereaction mixture were radiolabeled. The percentage (%) of radiolabeled single–stranded DNA after three cycles will be […]

Q.91 Imagine a population of diploid species in Hardy–Weinberg equilibrium.The population has two alleles for a gene which are ‘a’ and ‘A’. The number ofindividuals with ‘aa’ genotype in this […]

Q.90 The “foramen of Panizza” is found in which one of the following groups of animals?(A) Fishes(B) Crocodiles(C) Frogs(D) Dolphins The foramen of Panizza is a specialized anatomical structure found […]

Q.89 Desmosomes are(A) intermediate filament–based cell adhesion complexes.(B) protein synthesizing macromolecular complexes.(C) subcellular organelles.(D) DNA–protein complexes. Desmosomes are intermediate filament-based cell adhesion complexes that anchor adjacent cells together for mechanical […]

Q.88 Which one of the following is a “post–zygotic” isolating mechanism of speciation?(A) Behavioral isolation(B) Fertilization failure(C) Hybrid sterility(D) Seasonal isolation Correct Answer: (C) Hybrid sterility Hybrid sterility represents a […]