ANTA01H3 Chapter Notes - Chapter 3: Dna Replication, Cell Nucleus, Nuclear Dna
Document Summary
The cell: cells are the basic units of life in all living things. The sole function of a sex cell is to unite with a gamete from another individual to form a zygote. Genetics: the study of gene structure and the action pattern of transmission of traits from parent to offspring. Genetic mechanisms are the foundation for evolutionary change. Nucleus: a structure (organelle) found in all eukaryotic cells, the nucleus contains chromosomes (nuclear dna). Deoxyribonucleic acid (dna): the double-stranded molecule that contains the genetic code dna is a main component of chromosomes. Ribonucleic acid (rna): a molecule similar in structure to dna. Three different single- stranded forms of rna are essential to protein synthesis. Cytoplasm: the portion of the cell contained within the cell membrane, excluding the nucleus. The cytoplasm consists of a semi-fluid material and contains numerous structures involved in cell function.
