​Which of These Best Explains the Recent Drop in Cancer

question 1

Multiple Choice

​Which of these best explains the recent drop in cancer death rates in the U.S.?

• A) ​Better procedures for treatment of cancer
• B) ​Better techniques for diagnosis of cancer
• C) ​Changes in the lifestyles of many citizens
• D) ​Both a and c have contributed to this drop

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Definitions:

Leading Strand

The DNA strand that is synthesized continuously during DNA replication, in the direction of the replication fork.

Origin Of Replication

A specific sequence in a genome where DNA replication begins, allowing the DNA to be duplicated.

Single-Strand Binding Proteins

Proteins that bind to single-stranded DNA (ssDNA) during processes such as replication and repair to prevent the DNA from forming secondary structures.

Nucleases

Enzymes that cut DNA or RNA at specific sequences, playing critical roles in genetic material replication, repair, and degradation.