

Understanding Environmental DNA (eDNA)
Interactive Video
•
Biology
•
9th - 10th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of using eDNA in ecological studies?
To create new species
To monitor species in a habitat
To eliminate invasive species
To increase biodiversity
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is eDNA typically collected from aquatic environments?
By using video surveillance
By observing animal behavior
By collecting water samples
By capturing fish
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of PCR in the eDNA analysis process?
To sequence the entire genome
To amplify specific genetic markers
To identify the habitat of species
To create new DNA sequences
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are universal primers important in eDNA studies?
They are specific to one species
They eliminate unwanted DNA
They create new species
They bind to all animal DNA target genes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a critical factor for accurate species classification using eDNA?
The size of the water sample
The quality of the reference database
The color of the DNA fragments
The temperature of the environment
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one limitation of using eDNA for species abundance estimation?
It is too expensive
It cannot detect rare species
It can only detect plants
It may not accurately reflect biomass
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why might some species not be detected in an eDNA study?
They are nocturnal
They are too small
They live in deep water
Their DNA does not bind to the primers
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