Answer:
A) nutrient A only
Explanation:
In this case, enzyme A is required for the digestion of nutrient A, thereby evidencing that the mutation affects the enzymatic pathway and the mutant strain only can grow by supplementation with this nutrient. In molecular biology, mutant strains are useful to study enzymatic functions (for instance, the role of enzyme A in nutrient assimilation), as well as to examine downstream signaling pathways.
In experimental design, spontaneous mutations are induced to study their effects on the phenotype. Subsequently, reverse mutations may also be induced to reverse the forward mutation, thus restoring the original wild-type phenotype.
Answer:The Doppler effect is the change of wavelength of light when its source moves along the line of sight with respect to the observer.
Explanation:
Answer:
The plate tectonics theory is that there are PLATES covering the earth's surface. This theory also says that they may cause earthquakes and cause volcanos to form!
Have a wonderful day!
