A | B |
Heredity | passing on of genetic information from parent to offspring |
Gregor Mendel | Father of Genetics |
Self-pollination | sperm cells in pollen fertilize egg cells of the same plant |
cross-pollination | pollen fertilizes female egg cells of another plant |
P generation | true-breeding, purebred plants created by self-pollinating |
F1 generation | offspring of crossing two P generation plants |
F2 generation | offspring of the F1 generation |
law of segregation | alleles are separated during gamete formation |
law of dominance | some alleles are dominant, some are recessive |
genes | "factors" that control traits |
alleles | different forms or versions of genes |
dominant | allele that is expressed |
recessive | allele that is expressed only in the homozygous state (not expressed in heterozygous) |
genotype | genetic make-up of an organism |
phenotype | physical appearance of an organism that develops from the genotype |
homozygous dominant | two dominant alleles for a trait (TT) |
homozygous recessive | two recessive alleles for a particular trait (tt) |
heterozygous | two different alleles for the same trait (Tt) |
probability | likelihood that something will happen |
law of independnet assortment | alleles for different genes separate independently of one another during gamete formation |