The pesticide used in foundation of buildings for preventing termite attack is:

• (a) DDT
• (b) BHC
• (c) aldrin
• (d) endosulphan

Q.2 Bioinsecticides includes:

• (a) pathogens
• (b) parasites
• (c) predators
• (d) All of these

Q.3 BCG vaccine provides protection from:

• (a) emphysema
• (b) pneumonia
• (c) polio
• (d) tuberculosis

Q.4 The extra nuclear DNA in a bacterial cell con­tains genes for:

• (a) sexuality
• (b) drug resistance
• (c) sexuality and drug resistance
• (d) mortality

Q.5 Bacterial ribosomes are found:

• (a) in the cytoplasm
• (b) on nuclear memberane
• (c) on the cell wall
• (d) on endoplasmic reticulum

Q.6 DNA does not have:

• (a) adenine
• (b) uracil
• (c) guanine
• (d) thymine

Q.7 Which of the following is known as power house of cell ?

• (a) Mitochondria
• (b) Ribosomes
• (c) Nucleus
• (d) RNA

Q.8 Gametes formation takes place through the process of:

• (a) amitosis
• (b) mitosis
• (c) meiosis
• (d) fission

Q.9 The point at which crossing over occurs is called as

• (a) chiasmata
• (b) centromere
• (c) chromosome
• (d) gene loci

Q.10 The period of pendulum depends upon:

• (a) mass
• (b) length
• (c) amplitude
• (d) energy

Q.11 If the letters in ‘PRABA’ are coded as 27595 and ‘THILAK’ are coded 368451, how can ‘BHARATHI’ be coded?

• (a) 96575368
• (b) 57686535
• (c) 96855368
• (d) 37536689

Instruction:(12-13)In the following questions, select the related word/ number from the given alternatives.

Q.12 Book: Shelf-Clothes : ?

• (a) Hanger
• (b) Cupboard
• (c) Wardrobe
• (d) Bureau

Q.13 125 : 5 : : 64 : ?

• (a) 8
• (b) 4
• (c) 2
• (d) 32

Q.14 Which of the following is not a mineral acid?

• (a) HCl
• (b) H2SO4
• (c) HCOOH
• (d) H2CO3

Q.15 Energy possessed by a body due to its configuration is:

• (a) kinetic energy
• (b) nuclear energy
• (c) potential energy
• (d) thermal energy