Group of ribosomes attached to mRNA is called:
Correct answer: B. Polysome
- A. Polyploid
- B. Polysome
- C. Polynucleotide
- D. Polysaccharide
Explanation
A polyribosome (or polysome or ergosome) is a group of ribosomes bound to an mRNA molecule like "beads" on a "thread". While other options, i.e. Polyploidy is the heritable condition of possessing more than two complete sets of chromosomes. Polynucleotides are linear biopolymers that are composed of several nucleotide monomers with covalent bonds in a chain. Polysaccharides are a major class of biomolecules. They are long chains of carbohydrate molecules, composed of several smaller monosaccharides.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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