4551: In the given figure, the triangle represents girls, the square represents sports persons and the circle represents coaches. The portion in the figure which represents girls who are sports persons but not coaches is the one labelled
(a) A
(b) B
(c) D
(d) E
4552: In a group of five persons A, B, C, D and E, there is a professor, a doctor and lawyer. A and D are unmarried ladies, and do not work. Of the married couple in the Group, E is the husband. B is the brother of A and is neither a doctor nor a lawyer. Who is the professor ?
4553: Consider the following statements regarding biomedication. It involves the use of bacteria and fungi to:
1. Clean up aquifers
2. Clean up toxic dumps
3. Clean up oil spills
4. Cure bacterial and fungal disease
(a) 1 and 2 are correct
(b) 1 and 3 are correct
(c) 1, 2 and 3 are correct
(d) 1, 2, 3 and 4 are correct
4554: Which one of the following techniques can be used to establish the paternity of a child ?
(a) Protein analysis
(b) Chromosome counting
(c) Quantitative analysis of DNA
(d) DNA finger-printing
4555: If the angles of a triangle are in the ratio of 4 : 3 : 2, then the triangle
(a) is obtuse
(b) has one angle greater than 80°
(c) is a right triangle
(d) is acute