A typical chromosome consists of two arm med as a

166
A typical chromosome consists of two arm med as:
a. Centromere
b. Chromatids
c. Arms
d. Genes
167
The strength of an acidic or alkaline solution is measured using a
The number of chromosomes are doubled during:

b. Anaphase
c. Interphase
d. Prophase
169
The human Nervous System consists of the Central Nervous System and
170
Sulfur dioxide causes:
a. Respiratory infections
b. Skin Diseases
c. Nail damages
d. Hair damages
171 in solids, atoms or molecules are packed closely in a fixed position by:

Which among the following is a pleasant sound? 173 A solution that contains the maximum amount of solute dissolved in a given volume of solvent at a
particular temperature is called

174
The tells the number and kinds of atoms present in a molecule.
a. Atomic Number
b. Atomic formula
c.Chemical Formula
d. Chemical Formula
175 Chromosomes are present in the:
176 What is mass?

177 The special organs, tissues or calls which detect stimuli are called
178
The objects that do not allow light to pass through them are called
a. Translucent
b. Transparent
c. Opaque
d. None
179
Alkali turns red litmus paper to colour
a. Blue
b. Green
c. White
d. Grey

180
According to the Watson and Crick made, DNA molecule is made of thousands of small units called
181
The outermost region of kidney is