Q.1
Male XX and female XY develop sometimes due to .... ... [ CBSE 2001 ]
  • a) hormonal imbalance
  • b) aneuploidy
  • c) deletion
  • d) transfer of segments between X and Y
Q.2
Match the columns ... .. [ Kerala 2007 ]
Column I Column II
Sickle cell anaemia a. 7th chromosome
Phenylketonuria b. 4thchromosome
Cystic fibrosis c. 11th chromosome
Huntington's disease d. X-chromosome
Colour blindness e. 12th chromosome
  • a) 1 - a , 2 - c, 3 -d, 4 - b, 5 - e
  • b) 1 - c , 2 - e, 3 -a, 4 - b, 5 - d
  • c) 1 - b , 2 - c, 3 -d, 4 - e, 5 - a
  • d) 1 - b , 2 - a, 3 -c, 4 - e, 5 - d
Q.3
Blood does not stop coming out of a wound in ... ... [ AIIMS 2000 ]
  • a) tetanus
  • b) malaria
  • c) haemophilia
  • d) AIDS
Q.4
Linked genes separate due to ... .. [ CPMT 1994]
  • a) recombination
  • b) Mutation
  • c) Crossing over
  • d) None of the above
0 h : 0 m : 1 s