Consider the following statements: 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?

1 only
3 only
1 and 2
2 and 3

LohaHridoy

5 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : 2 and 3

The correct answer is 2 and 3.

DNA barcoding is a methodology for rapidly and accurately identifying species by sequencing a short segment of standardized gene regions and comparing individual sequences to a reference database.

Some applications of DNA barcoding include:

Identification of new species
Safety assessment of food -- Hence, 3 is correct.
Identification and assessment of cryptic species -- Hence, 2 is correct.
Detection of alien/invasive species
Identification of endangered and threatened species
Linking egg and larval stages to adult species
Securing intellectual property rights for bioresources
Framing global management plans for conservation strategies
Identifying plant leaves even when flowers or fruits are not available
Identifying pollen collected on the bodies of pollinating animals

Carbon dating is a technique used to determine the approximate age of once-living materials. It is based on the decay rate of the radioactive carbon isotope C₁₄, a form of carbon taken in by all living organisms while they are alive.

5 views Answered 2022-09-04 04:29

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