flash cards
Allele
Any several forms of a gene usually rising through mutation
Genotype
The sum total of genes transmitted from parent to offspring
Phenotype
An organism apperance or other detectable charactericic
Sex linked disorder
A genetic disorder that is found on the X chromosome
Dominant trait
The trait observed in the first generation parents that have different traits are bred
Recessive trait
A trait that re appers in the second generation when parents with different traits are bred
Mitosis
Cell division that results in two cells with equal number of chromosomes to the original cell
Meiosis
Cell division that results in 4 cells with half the chromosome from the original cell
Identical twins
The fertilized egg divides into 2 separate embryos groups of cells
Fraternal twins
2 separate eggs are produced and each are fertilized by different sperm
DNA
Molecule found in the nucleus of all living cells
Chargaffs rule
Found that the amount of adening always equals the amount of thymine
DNA replication
The bases A T C G split and new bases match up to the old ones
Mutations
Changes in the number type or order of bases on a piece of DNA
Deletion
A base gets left out
