Compounds which are needed in very small amount but their deficiency lead to scurvy and rickets are:
- (A) Vitamins
- (B) Proteins
- (C) Fats
- (D) Carbohydrates
- (A) Vitamins
Iron is present in the blood in the form of a:
- (A) Complex
- (B) Compound
- (C) Free salt
- (D) Mixture
- (B) Compound
The main constituent of ‘Hemoglobin’ is:
- (A) Calcium
- (B) Iron
- (C) Chlorine
- (D) Magnesium
- (B) Iron
The maximum temperature to human skin can tolerate without getting blisters is:
- (A) 40°C
- (B) 60°C
- (C) 80°C
- (D) 90°C
- (A) 40°C
Retina in the eyes acts as a _______ in the camera.
- (A) Film
- (B) Lenz
- (C) Shutter
- (D) Mirror
- (A) Film
A color blind person has difficulty in distinguishing between which colors?
- (A) Blue and Yellow
- (B) Violet and White
- (C) Red and Green
- (D) Purple and Orange
- (C) Red and Green
Red-Green color blindness in man is known as:
- (A) Protanopia
- (B) Deuteranopia
- (C) Both (A & B)
- (D) None of these
- (C) Both (A & B)
Which combination of chromosomes is present in males?
- (A) XX
- (B) YY
- (C) XY
- (D) XYX
- (C) XY
Which of the following combinations of chromosomes is present in females?
- (A) YY
- (B) XX
- (C) XY
- (D) XXX
- (B) XX
Blood group of an individual is controlled by:
- (A) Shape of RBCs
- (B) Genes
- (C) Shape of WBCs
- (D) Hemoglobin
- (B) Genes