Revision for B4 Test - Biology - Harry Barnwell
What is the first step in the genetic engineering process?
Isolating the gene of interest
Which Enzyme is commonly used to cut DNA in genetic engineering?
Restriction Enzymes
Define selective breeding
The process of intentionally breeding animals or plants with specific desirable traits to produce offspring with those traits.
What is an example of selective breeding in plants?
Breeding roses for specific colors or orchids for unique patterns.
What is the pentadactyl limb?
A limb with five digits or fingers, commonly found in many vertebrates, including humans.
What is the first step in natural selection?
Variation within a population
What is the final step in natural selection?
Adaption of the population to the environment.
How old is Ardi?
4.4 million years old
How old is Lucy?
3.2 million years old