Question

The idea that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another is the _______ hypothesis.

A. progressive

B. recessive

C. coevolution

D. regressive

Please help.

Answer 1

A. progressive

Step-by-step explanation:

Progressive Hypothesis: The DNA and RNA that show up inside viruses originally came from a living cell. This nucleic acid evolved new abilities to infect and replicate.

#pennfoster4life

⭐⭐⭐⭐⭐

Answer 2

A. Progressive

Step-by-step explanation:

Origin of viruses is explained variously. According to one hypothesis, viruses are thought to be originated from mobile genetic elements. This is also called a progressive hypothesis of the origin of viruses.

According to this hypothesis, some sequences from the genomes acquired the ability to move from one locus to another locus of genome. Gradually, these mobile genetic elements acquired the ability to move between different cells and led to the evolution of viruses.