Gujranwala Board 2009 Bio Part 2

1) which one is said to be excretophore a) pants b) stem c) roots d) leaves 2) vertebral column protects the cord and has ________ curvatures a) 2 b) 3 c) 4 d) 5 3) which produce the reception of pain a) nocireceptors b) mechanorecptors c) chemoreceptors d) thermoreceptors 4) number of cranial and spinal nerves in man a) 12 , 31 b) 24 , 62 c) 10 , 40 d) all 5) mRNA is synthesized by a) RNA polymerase b) DNA polymerase c) DNA ligase d) none of these 6) Se is on _______ chromosome a) 9 b) 19 c) 21 d) 24 7) which one is human smallest chromosome a) 22 b) 12 c) 14 d) 20 8) eukaryotes are thought to have first appeared about ______ billion years ago a) 1.5 b) 2.5 c) 3.5 d) 4.5 9) scientific name for rehus monkey a) Maccaca Mulatto b) taxus baccata c) felis felis d) none of these 10) modern man is called homo sapiens and has been on this world for about _____ years a) 10000 b) 20000 c) 30000 d) 40000 11) condition in which palatine plate fail to fuse a) cleft palate b) arthritis c) tetany d) osteoporosis