When cattle are slaughtered and processed, E. coli bacteria in their intestines can get on the meat. Ground beef combines meat from many different animals, increasing the risk of contamination. E. coli bacteria on a cow's udder or on milking equipment can get into raw milk or runoff from cattle farms can contaminate fields where fresh produce is grown. Certain vegetables, such as spinach and lettuce, are particularly vulnerable to this type of contamination.
Answer:
1. Restriction enzymes cut DNA at specific sites in DNA sequences.
Explanation:
They are called the drainage divide.
Ultraviolet light can cause thymine dimers, potentially creating a mutation that could lead to cancer.
<h3>What Causes Thymine Dimers ?</h3>
In a single POLYNUCLEOTIDE CHAIN a pair of THYMINE residues that have become chemically bonded by the action of ULTRAVIOLET LIGHT. The lesion can inhibit DNA replication unless repaired.
Pyrimidine Dimers or thymine dimers are usually covalent links between adjacent pyrimidine bases on the same strand of DNA.
Thymine dimers distorts the DNA shape and prevents the accurate copying of DNA, which causes mutations.
For more details regarding thymine dimer, visit
brainly.com/question/25403396
#SPJ1
