Question:
Retrovirues have _____ as genetic material.
Retrovirues have _____ as genetic material.
Updated On: Jul 28, 2022
- only DNA
- only RNA
- both DNA and RNA
- either DNA or RNA
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The Correct Option is B
Solution and Explanation
Retroviruses include Human Immunodeficiency Virus (HIV) that causes AIDS. They have RNA as the genetic material and replicate by first synthesising a complementary DNA. This process is called reverse transcription.
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The process of grouping living organisms into categories is called biological classification. The most modern 5-kingdom classification was put ahead by an eminent scientist R.H.Whittaker. The five-kingdom classification is based on the criteria like cell structure, mode of nutrition, body form, and reproduction. One of the most important characteristics of this system is that it follows the evolutionary sequence of living organisms. The organisms are classified into distinct taxa or levels like Kingdom, Phylum, Division, Class, Order, Family, Genus, and Species. The 5 kingdoms are as follows:
