Multiple Choice QuestionsA student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution?
Yellow
Green
Blue
Red
The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is
20 mm Hg
75 mm Hg
30 mm Hg
50 mm Hg
Centromere is required for
transcription
crossing over
cytoplasmic cleavage
movement of chromosomes towards poles
D.
movement of chromosomes towards poles
Chromosomes are responsible for the transmission of the hereditary information from one generation to the next. Arms of the chromosome is known as chromatid. They are joined together in the centre known as centromere or primary constriction. During cell division, spindle fibres attach to centromere and help in the movement towards the poles.
Damage to thymus in a child may lead to
a reduction in haemoglobin content of blood
a reduction in stem cell production
loss of antibody mediated immunity
loss of cell mediated immunity
G-6-P dehydrogenase deficiency is associated with haemolysis of
lymphocytes
RBCs
platelets
leucocytes
Which of the following substances, if introduce in the blood stream, would cause coagulation, at the site of its introduction?
Fibrinogen
Prothrombin
Heparin
Thromboplastin
Nucleotide are building blocks of nucleic acids, nucleotide is a composite molecule formed by
(base-sugar-phosphate)n
base-sugar-OH
base-sugar-phosphate
sugar-phosphate
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these
enhance oxidative metabolism
are conjugated proteins
are exclusively synthesized in the body of a living organism as at present
help in regulating metabolism
In a man, abducens nerve is injured. Which one ofthe following functions will be affected?
Movement of the eye ball
Swallowing
Movement of the tongue
Movement of the neck
Switch
