[{"id":2591,"question":"Histones are positively charged due to an abundance of the basic amino acids","choices":[{"text":"Arginine","value":"A"},{"text":"Lysine","value":"B"},{"text":"Both a &amp; c","value":"C"},{"text":"Alanine","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2590,"question":"<sup>32</sup>P and <sup>35</sup>S labeled viruses were used in his experiments by","choices":[{"text":"Watson &amp; Crick","value":"A"},{"text":"Hershey &amp; Chase","value":"B"},{"text":"Wilkins &amp; Franklin","value":"C"},{"text":"Correns &amp; Bridge","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2589,"question":"Genetic code is a combination of 3 nucleotides in DNA which specify a particular","choices":[{"text":"Amino acid","value":"A"},{"text":"Fatty acid","value":"B"},{"text":"Vitamin","value":"C"},{"text":"Steriod","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2588,"question":"Every 200 nucleotides the DNA duplex is coiled around a core of eight histone proteins forming a complex known as a","choices":[{"text":"Histomone","value":"A"},{"text":"Nucleosome","value":"B"},{"text":"Peroxisome","value":"C"},{"text":"Glyoxisome","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2587,"question":"Each tRNA has a sequence of three bases called anticodon which is complementary to codon of","choices":[{"text":"rRNA","value":"A"},{"text":"tRNA","value":"B"},{"text":"mRNA","value":"C"},{"text":"snRNA","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2585,"question":"DNA changes are called mutations and the organisms that have undergone such changes are called","choices":[{"text":"Wild types","value":"A"},{"text":"Changer","value":"B"},{"text":"Mutants","value":"C"},{"text":"Transmutants","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2582,"question":"Adenine and guanine are called","choices":[{"text":"Purines","value":"A"},{"text":"Pyrmidines","value":"B"},{"text":"Both a &amp; b","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2579,"question":"The number of nucleotides in the DNA of a typical human chromosome is about","choices":[{"text":"10 Million","value":"A"},{"text":"40 million","value":"B"},{"text":"80 million","value":"C"},{"text":"140 million","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":2576,"question":"The number of chromosomes in frog is","choices":[{"text":"52","value":"A"},{"text":"26","value":"B"},{"text":"13","value":"C"},{"text":"7","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2572,"question":"Primary tissue is added by the","choices":[{"text":"Lateral meristem","value":"A"},{"text":"Underground meristem","value":"B"},{"text":"Apical meristem","value":"C"},{"text":"Vertical meristem","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2569,"question":"On the basis of structure and shape of the cap,two species of Acetabularia have been identified","choices":[{"text":"Acetabularia mediterrance &amp; A.crenulata","value":"A"},{"text":"A.typhi &amp; A.mediterranea","value":"B"},{"text":"A.crenulate &amp; A.sisso","value":"C"},{"text":"A.crenulata &amp; A.arabica","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":2564,"question":"The Syndrome which is an example of trisomy of the sex chromosome is","choices":[{"text":"Turner's syndrome","value":"A"},{"text":"Down's syndrome","value":"B"},{"text":"Klinefelter's syndrome","value":"C"},{"text":"Tay-Sach's syndrome","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2559,"question":"In the chick the mesodermal cells migrate and caudally from both sides and create a mid line thickening called","choices":[{"text":"Primitive streak","value":"A"},{"text":"Excretion","value":"B"},{"text":"Ultra-streak","value":"C"},{"text":"Blastoderm","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":2552,"question":"in plants regeneration is the basis of plant","choices":[{"text":"Fishes","value":"A"},{"text":"Amphibian","value":"B"},{"text":"Reptiles","value":"C"},{"text":"Birds","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":2549,"question":"In incubating eggs artificially the incubators are usually regulated at temperature between","choices":[{"text":"20 - 22<sup>o</sup>C","value":"A"},{"text":"27 - 29<sup>o</sup>C","value":"B"},{"text":"30 - 32<sup>o</sup>C","value":"C"},{"text":"36 - 38<sup>o</sup>C","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":2548,"question":"In chordates the healing of fracture and repair of a skin wound are some other examples of","choices":[{"text":"Reformation","value":"A"},{"text":"Regeneration","value":"B"},{"text":"Rejuvenation","value":"C"},{"text":"Renaissance","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":2546,"question":"In addition to auxin which hormone also play important role in apical domince","choices":[{"text":"Abcesic acid","value":"A"},{"text":"Gibberellins","value":"B"},{"text":"2,4-D","value":"C"},{"text":"Cytokinins","value":"D"},{"value":"E"}],"correctAnswer":4}]