UPSC PRELIMS · GEOGRAPHY · DNA BARCODING AND BIODIVERSITY
DNA Barcoding can be a tool to: 1. Assess the age of a plant or animal. 2. Distinguish among species that look alike. 3. Identify undesirable animal or plant materials in processed foods. Which of the statements given above is/are correct?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
DNA barcoding uses short standardized DNA sequences to identify species and can detect adulteration or unwanted biological material; it does not normally determine an organism’s age.
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.