O d. Many people tie sex only to reproduction Question 13Not yet answered Points

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O d. Many people tie sex only to reproduction Question 13Not yet answered Points out of 1 Flag question Which statement best describes telmeres? Select one a. the unit of heredity in living organisms O b. a large macromolecule into which DNS is normally packaged in a cell O c. a fibrous protein that is the main support of connective tissues O d. the ends of chromosomes that shrink with each cell division Question 14 Not yet answered P Flag question Points out of 1 Which statement about the free radical theory of aging is false? Select one: O a damage by free radicals is associated with cancer and heart disease b. free radicals are unstable molecules O c. free radicals are produced during metabol o d, free radicals are produced by rediction reacoons, damasing cell proteins, membrances, and DNA Question 15 o P Flag guestion ude he following except the

Explanation / Answer

13] Option d is correct

Telomeres are the caps at the end of each strand of DNA that protect our chromosomes, like the plastic tips at the end of shoelaces.

Without the coating, shoelaces become frayed until they can no longer do their job, just as without telomeres, DNA strands become damaged and our cells can’t do their job.

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