Context: Interspersed repeats mainly come from transposable elements (TEs), but they also include some protein coding gene families and pseudogenes. Transposable elements are able to integrate into the genome at another site within the cell. It is believed that TEs are an important driving force on genome evolution of higher eukaryotes. TEs can be classified into two categories, Class 1 (retrotransposons) and Class 2 (DNA transposons).

Question: What is the main source of interspersed repeats?
Answer: Transposable elements

Question: What do researchers think transposable elements are key factors in when considering higher eukaryotes?
Answer: genome evolution

Question: What are the constituents of Class 1 transposable elements?
Answer: retrotransposons

Question: What are the constituents of Class 2 transposable elements?
Answer: DNA transposons

Question: How are pseudogenes classified?
Answer: Unanswerable

Question: What two categories are pseudogenes classified into?
Answer: Unanswerable

Question: Where do cells mainly come from?
Answer: Unanswerable

Question: What do cells also include?
Answer: Unanswerable

Question: What are pseudogenes able to do within the cell?
Answer: Unanswerable