Center part of a cell. Contains all the instructions to make the cell work & reproduce
Along string in the nucleus that contains the genes
A segment of DNA for one trait. Genes are arranged on a chromosome.
A chemical that has genetic instructions for growth, development and reproduction
a gene that always shows itself
a gene whose expression is hidden by a dominant gene.
genetic makeup of an organism
Traits that are observable on an organism. Two organisms with the same phenotype (e.g. brown eye color)can have different genotypes (One has BB genes & the other has Bb genes)
A cell or cells that are exact copies.
diagram showing possible gene combinations