Q. Consider the following statements regarding “Environmental DNA (eDNA)”:
1. It is the nuclear or mitochondrial DNA that is released from an organism into the environment through natural processes during their lifetime or after death.
2. Secreted feces, mucous, and gametes are sources of eDNA.
Which of the statements given above is/are correct?
Answer: C
Notes:
Explanation: Recently, scientists estimated that the total taxonomic diversity of Chilika lagoon in Odisha is about 1,071 families across the tree of life using environmental DNA (eDNA) method.
· eDNA – It is the nuclear or mitochondrial DNA that is released from an organism into the environment through natural processes during their lifetime or after death.
· Sources of eDNA- Secreted feces, mucous, and gametes; shed skin and hair; and carcasses.
Source: FORUMIAS
