You discover a new virus. It has a single stranded + sense RNA genome. It uses a special enzyme to convert the RNA genome into double stranded DNA. Transcription of mRNA is carried out from the DS DNA template. Which group in the Baltimore classification system would you place this virus into?

Group VI viruses (retroviruses)

Explanation:

Baltimore classified the viruses in different groups on the basis of their mode of replication and the type of genetic material they possess.

In the given question, the species which contains an ssRNA molecule but use DNA as an intermediate molecule to replicate is known as a retrovirus.

The retrovirus uses a special enzyme called reverse transcriptase which synthesizes the DNA from an RNA template. The DNA formed gets integrated into the host genome and gets replicated.

Thus, Group VI viruses are the correct answer.

Options (1), (2) and (3)

Explanation:

The computers are the electronic devices that are very widely used in the field of meteorology because it helps in the collection of data that are stored in the various weather stations.

These are connected to the satellites and other weather stations that obtain the various types of atmospheric information such as the atmospheric temperature and pressure condition, wind speed and direction, humidity content in the air, and the amount of cloud cover in the sky. These data are stored in the computer and are later used to represent them in the form of a map using the computerized system. Different types of weather maps can be drawn from it. Acquiring all of this information, a meteorologist uses the various types of numerical equations in order to predict the type of weather that would occur in the future.

Thus, the correct answer is option (1), (2) and (3).