UPSC PRELIMS · GEOGRAPHY · VIRAL GENOMES AND DISEASES
Consider the following statements: 1. Adenoviruses have single-stranded DNA genomes whereas retroviruses have double-stranded DNA genomes. 2. Common cold is sometimes caused by an adenovirus whereas AIDS is caused by a retrovirus. Which of the statements given above is/are correct?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
Adenoviruses have double-stranded DNA, not single-stranded DNA; some adenoviruses cause respiratory illness and HIV is a retrovirus.
More Geography practice
GEOGRAPHY · Indian Geography: Waterfalls
Consider the following pairs: 1. Dhuandhar — Malwa — Narmada 2. Hundru — Chota Nagpur — Subarnarekha 3. Gersoppa — Western Ghats — Netravat…
GEOGRAPHY · Physical Geography: Mountains
Consider the following pairs: 1. Central Asia — Vosges — Fold mountains 2. Europe — Alps — Block mountains 3. North America — Appalachians…
GEOGRAPHY · Transport Geography
Consider the following airports: 1. Donyi Polo Airport 2. Kushinagar International Airport 3. Vijayawada International Airport Which of the…
GEOGRAPHY · World Geography
Consider the following countries: 1. United Kingdom 2. Germany 3. Norway 4. Russia How many of the above countries have a coast on the Nort…
Ready for the real thing?
Battle other aspirants in timed 1v1 Prelims duels, climb the rating ladder and keep your daily streak. Free and ad-free.