Definition: A type of plastic made from a specific chemical called propylene, used to create strong and durable items like containers and fabrics.

Example: The chair is made of polypropylene, making it both lightweight and sturdy.

Definition: Relating to a structure made up of multiple ribosomes that are attached to a single strand of messenger RNA, allowing for the simultaneous translation of proteins.

Example: The polyribosomal nature of the mRNA allows for efficient protein synthesis in the cell.

Definition: A group of ribosomes that are connected by a single strand of messenger RNA, working together to make proteins.

Example: The polyribosome is essential for the efficient synthesis of proteins in the cell.

Definition: A type of carbohydrate made up of many sugar molecules linked together, which can be broken down into simpler sugars.

Example: Starch and cellulose are examples of polysaccharides found in plants.

Definition: A structure in a cell consisting of multiple ribosomes attached to a single strand of messenger RNA, involved in protein synthesis.

Example: The polysome allows for the efficient production of proteins by enabling multiple ribosomes to translate the same mRNA simultaneously.

Definition: A type of plastic that is hard and can be shaped into different forms, often used for making containers, insulation, and packaging materials.

Example: The cups were made of polystyrene, making them lightweight and easy to carry.

Definition: A type of chemical compound that has two or more sulfur atoms in its structure.

Example: Polysulfide is often used in sealants and adhesives due to its flexibility and durability.

Definition: Describing chromosomes that are made up of many strands and have their parts connected together.

Example: The polytene chromosomes in the fruit fly are used for genetic studies due to their large size and distinct banding patterns.

Definition: A condition in which a cell contains polytene chromosomes, which are large chromosomes made up of many strands that have joined together.

Example: The study of polyteny revealed important insights into genetic expression in certain organisms.

Definition: A type that is part of a group of different forms or variations of a substance, often seen in materials that can exist in multiple structural forms.

Example: Graphite and diamond are two different polytypes of carbon.