Which of These Findings Supports the Progressive Hypothesis of Viral

question 16

Multiple Choice

Which of these findings supports the progressive hypothesis of viral origin?

• A)The presence of mitochondria and chloroplast in cells.
• B)The existence of obligate intracellular pathogens like Chlamydia.
• C)The discovery of nucleocytoplasmic large DNA viruses.
• D)The existence of eukaryal transposons or retrotransposon genetic elements.
• E)The presence of a nucleus in eukaryotic cells.