[Campbell Biology P.499] According to Figure 21.6, what is the approximate total percentage ... | Practice Question

According to Figure 21.6, what is the approximate total percentage of repetitive DNA in the human genome?

  • A: 44%
  • B: 66%
  • C: 15%
  • D: 20%

Explanation

According to Figure 21.6, repetitive DNA consists of several categories: Repetitive DNA that includes transposable elements and related sequences 44% , Repetitive DNA unrelated to transposable elements 14% , Simple sequence DNA 3% , and Large-segment duplications 5–6% . Summing these percentages 44 + 14 + 3 + 5 gives a total of 66%.