QUIZAlcohol Metabolism Explorer
How quickly a person breaks down alcohol depends on two enzymes, ADH1B and ALDH2, and on the DNA that…
Topic
Heredity
Heredity is the transmission of genetic traits from parents to offspring through DNA. Understanding inheritance patterns, from Mendelian genetics to complex traits, helps explain both the similarities and variations we see within and between species.
9 interactives
QUIZ
QUIZCFTR Channel Simulation
Cystic fibrosis starts with a tiny change in one gene. Deleting three nucleotides from CFTR removes a…
QUIZChi-Square Statistical Activity
Real biological data never match a prediction exactly, so biologists need a way to judge whether a…
LABEnvironmental Effects on Phenotype Lab
A genotype does not fix a phenotype on its own. Identical genes can produce very different traits…
CALCGene Mapping Interactive
Genes that sit close together on the same chromosome tend to be inherited together, and crossing over…
LABIVF Simulator
In vitro fertilization brings egg and sperm together outside the body, then supports the resulting…
GAMEPedigree Profiteers
Traits such as speed and stamina are inherited, so breeders choose which animals reproduce in the hope…
QUIZSickle Cell Simulation
A single nucleotide change in the HBB gene alters one amino acid in hemoglobin, and that tiny change…
LABVirtual Gel Electrophoresis
Gel electrophoresis separates DNA fragments and proteins by pulling them through a gel with an electric…