stock
group of organisms (all of the same species) that is genetically self-sustaining and isolated geographically or temporally during reproduction.
A special variety of domesticated animals within a species; he experimented on a particular breed of white rats; he created a new strain of sheep.
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural selection have led to studies that actively manipulate the phenotype of offspring by selective breeding in animals and plants. ..
Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matter (adaptation). You'll also learn what a genetic bottleneck is, and how genetic bottlenecks affect conservation...
