Exam: GRE (Verbal)

Definition: The main part of a virus that includes its genetic material and is covered by a protein shell.

Example: The nucleocapsid protects the viral genetic material from degradation.

Definition: The region in a prokaryotic cell, like a bacterium, where the genetic material (DNA) is located, similar to the nucleus in more complex cells.

Example: In bacteria, the nucleoid is where the DNA is stored and organized.

Definition: Relating to the nucleolus, which is a small structure within a cell's nucleus involved in producing ribosomes.

Example: The nucleolar activity increases during cell division.

Definition: A small structure found within the nucleus of a cell, responsible for producing ribosomes.

Example: The nucleole plays a crucial role in the cell's ability to produce proteins.

Definition: A small, round structure found inside the nucleus of a cell, made of protein and RNA, that helps produce ribosomes.

Example: The nucleolus is essential for ribosome production in eukaryotic cells.

Definition: A type of subatomic particle found in the nucleus of an atom, which can be either a proton or a neutron.

Example: In the nucleus of an atom, each nucleon contributes to the overall mass and stability of the atom.

Definition: Relating to the particles found in the nucleus of an atom, such as protons and neutrons.

Example: The nucleonic properties of the material were studied to understand its behavior under radiation.

Definition: The study and development of instruments related to nuclear research and the behavior of atomic nuclei.

Example: Nucleonics plays a crucial role in advancing our understanding of nuclear energy.

Definition: A type of chemical substance that is attracted to positively charged parts of molecules and can donate or share electrons with them.

Example: In a chemical reaction, the nucleophile attacks the electrophile to form a new bond.

Definition: Relating to a type of chemical species that donates electrons to form a bond with another atom or molecule, often reacting with electron-deficient sites.

Example: In organic chemistry, nucleophilic reactions are essential for forming new compounds.