dazit

DDT (dichlorodiphenyltrichloroethane) is a man-made pesticide that was designed to kill insects that carried diseases. However, the pesticide was found to cause mutations to both body cells and sex cells in other organis...

A mutation occurs in a sequence of DNA. How could the DNA mutation affect the protein produced? A. The mutation could change every protein in the cell. B. The structure of the protein could be changed. C. The chromosomes...

A challenge in agriculture is growing crops without also growing unwanted plants such as weeds. To prevent weeds from growing in the same area as soybean crops, scientists have developed a certain herbicide that destroys...

ome mice have inherited a genetic mutation that causes them to have a band of white fur around the middle of their bodies. What is most likely true about an ancestor of these mice? A. A change in its food source affected...

Random mutations can occur in an organism's DNA, causing traits that are different from other organisms in that species. Sometimes these mutations can cause problems for the organism, but other times they are beneficial....

Nylon is a material made by humans. A nylon factory released wastewater containing small pieces of nylon into a pond. Some bacteria in this pond were able to eat the nylon and use it for energy. These bacteria could do t...