Question : Leukaemia or blood cancer is characterised by abnormal increase of the

Option 1: Red Blood Cells

Option 2: White Blood Cells

Option 3: Blood platelets

Option 4: Blood plasma

Question : Which cell organelle appears as rounded or sausage-shaped structures under electron microscopy, measuring about 0.5-1.0 μm in diameter and 2-8 μm in length?

Option 1: Ribosomes

Option 2: Lysosomes

Option 3: Mitochondria

Option 4: Plastids

Question : The red blood cells in a blood sample grow by 10% per hour in the first two hours, decrease by 10% in the next one hour, remain constant in the next one hour and again increase by 5% per hour in the next two hours. If the original count of the red blood cells in the sample is 40000, find the approximate red blood cell count at the end of 6 hours.

Option 1: 40,000

Option 2: 45,025

Option 3: 48,025

Option 4: 50,025

Question : A blood clot is formed because of the presence of certain cells in the blood called:

Option 1: chondrocytes

Option 2: erythrocytes

Option 3: platelets

Option 4: lymphocytes

Question : Grey hair is caused due to

Option 1: ageing of epidermal cells

Option 2: death of dermal cells

Option 3: loss of sebum in epidermal cells

Option 4: loss of melanin in epidermal cells