Q66. Antonie van Leeuwenhoek observed several microscopic organisms underhis hand–made microscope. He described them as(A) Bacteria.(B) Fungi.(C) Animalcules.(D) Bacteriophages. Antonie van Leeuwenhoek observed several microscopic organisms under his hand-made microscope […]
Q65. In a population of a diploid plant species obeying Hardy-Weinberg equilibrium, a locus regulating flower color has two alleles R and r. Individuals with RR, Rr and rr genotypes […]
Q64. In a diploid plant species, the T allele produces tall individuals and is completely dominant over the t allele that produces short individuals. Similarly, the W allele produces round […]
Q63. Which of the following option(s) is/are CORRECT in the context of hybridplant generation using Barnase/Barstar–based male sterile lines?(A) Barnase inhibits Barstar.(B) Barstar inhibits Barnase.(C) Barnase and Barstar are used […]
Q62. The observations of seed germination of various genotypes under different light conditions are given, where ✓ and X indicate germination and the lack of it, respectively. Genotype Blue Red […]
Q61. To understand the mechanism of systemic acquired resistance (SAR), ateam of researchers isolated a mutant with reduced SAR response.Sequencing of this mutant revealed homozygous mutations in two genes, Xand […]
Q60. Match the genetically modified crop GROUP I with the corresponding genetic element in GROUP II GROUP I GROUP II P. Tomato with delayed fruit ripening 1. EPSP synthase Q. […]
Q59. Find the CORRECT match among the plant species in GROUP I with the phytochemical in GROUP II and the economic/medicinal use in GROUP III. GROUP I GROUP II GROUP […]
Q58. The diagram describes the ABC model of flower patterning in Arabidopsiswhere the A, B and C functions are operational in the whorls (1+2), (2+3)and (3+4), respectively, in the wild–type […]
Q57. Match the modified organs in GROUP I with their corresponding prototypic forms in GROUP II and choose the correct option. GROUP I GROUP II P. Tendrils in grape vine […]
