12th Class FSc Part 2 Biology Chapter Wise Online MCQ Test With Answer PDF

Biology FSC Part 2 Online MCQ's Test

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

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