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Science - Unit 2 Vocabulary
Stage of the cell cycle during which the cell's nucleus divides
The process that occurs in sex cells (sperm & egg) by which the number of chromosomes is reduced by half
The basic unit of structure and function in living things
A widely accepted explanation of the relationship between cells and living things
A property of cell membranes that allows some substances to pass through, while others cannot
The process by which molecules move from an area of higher concentration to an area of lower concentration
The diffusion of water molecules through a selectively permeable membrane
The movement of materials through a cell membrane using energy
The movement of materials through a cell membrane without using energy
The different forms of a gene
The passing of traits from parents to offspring
A segment of DNA on a chromosome that codes for a specific trait
The scientific study of heredity
Having two different alleles for a trait (hybrid)
An allele whose trait always shows up in the organism when the allele is present
An organism's genetic makeup, or allele combinations
A characteristic that an organism can pass on to its offspring through its genes
An organism that is heterozygous for a particular trait
An organism that always produces offspring with the same form of a trait as the parent
Having two identical alleles for a trait (purebred)
An allele that is masked when a dominant allele is present
An organism's physical appearance, or visible traits
A chart that shows all of the possible combinations of alleles that can result from a genetic cross
The ability to make things look larger than they are. (Multiply magnification of eye piece by magnification of objective).
The ability to clearly distinguish the individual parts of an object. (Turn the coarse adjustment, then the fine adjustment).