Examlex
The figure represents the position of a particle as it travels along the x-axis. Between t = 2 s and t = 4 s, what is (a) the average speed of the particle and (b) the average velocity of the particle?
Chromatin
The complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells, serving to package DNA into a smaller volume to fit in the cell and control gene expression.
Nucleolus
A structure located within the cell nucleus, primarily involved in the synthesis and assembly of ribosomes, essential components for protein production.
Nuclear Envelope
The double-membrane structure that encloses the nucleus of a eukaryotic cell, separating the nucleus from the cytoplasm and containing nuclear pores for transport.
Nuclear Pores
Openings in the nuclear envelope that allow the passage of ions, molecules, and RNA between the nucleus and the cytoplasm.
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