Cell Biology MCQ question and answer with solution | Biology Gk MCQs

What are those structures that appear as 'beads-on-string' in the chromosomes when viewed under electron microscope?

The sequence of events by which a cell duplicates its genome, synthesises the other constituents of the cell and eventually divides is termed

A substance which is more than 80% in the cell is

DNA synthesis takes place simultaneously on both strands under the action of the enzyme

Archaeopteryx is

Consider the following statements and choose the correct answer:
1. All living things are composed of cells and their products
2. All cells arise from pre-existing cells
3. All cells are basically alike in chemical composition and metabolic activities
4. The function of an organism as a whole is the outcome of the activities and interactions of the constituent cells

Who among the following first discovered cell?

Chiasmata formed along the lengths of chromosomes are called

Consider the following statements regarding eukaryotic ribosomes and choose the correct answer:
1. Eukaryotic ribosomes are considerably smaller than that of prokaryotes
2. They contain a larger number of proteins
3. They have four molecules of RNA
4. The RNA-protein ratio is near 1 : 1 in eukaryotic ribosomes

Nucleoside is composed of