A: ' 5’ GGATCC 3’ ' is a DNA sequence with one strand of a restriction enzyme recognition sequence.
A restriction enzyme refers to a DNA-cutting enzyme that recognizes particular sites in DNA. Various restriction enzymes create staggered cuts at or near their recognition sites, making ends with a single-stranded overhang. In case when two DNA molecules have matching ends, the enzyme DNA ligase can be used to join them. The restriction endonuclease enzyme (EcoRI) recognizes the 5'-GAATTC'-3 sequence of DNA and develops a single-strand cut between the G & A nucleotides.
The answer is the option A. removing plants from hillsides eliminates the root structures that anchor soil. Indeed the roots of trees, further to anchor the tress to the floor, serve as a net to which the soil attaches preventing the soil of been washed and removed by rainstorms
