Which of the following would be considered a beneficial genetic alteration?
a. many current europeans have a gene for bubonic plague resistance.
b. people from africa descent have higher amounts of melanin increasing resistance to skin cancer.
c . peppered moths changed from gray to black during the industrial revolution in england.
d. all of the above

Pls the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.