
DNA Profiling and Analysis Concepts

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of DNA profiling?
To identify genetic disorders
To measure DNA length
To determine the age of an individual
To establish parentage
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are short tandem repeats (STRs) in DNA?
Long sequences of DNA
Four base repeats in DNA
Single nucleotide polymorphisms
Non-repetitive DNA sequences
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do STRs differ between unrelated individuals?
They are longer in one individual
They are completely absent
They have different numbers of repeats
They are identical
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do primers play in DNA analysis?
They amplify DNA without PCR
They attach to STRs to create fragments
They sequence the entire genome
They cut DNA into smaller pieces
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of PCR in DNA profiling?
To sequence DNA
To amplify DNA fragments
To cut DNA into smaller pieces
To identify genetic mutations
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are DNA fragments compared between individuals?
By counting the number of fragments
By running them through gel electrophoresis
By measuring their length
By sequencing the entire genome
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a similar pattern in gel electrophoresis indicate?
The individuals have identical DNA
The individuals are unrelated
The individuals share a genetic relationship
The DNA samples are contaminated
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can be concluded if two DNA samples show different patterns in gel electrophoresis?
The samples are contaminated
The samples are from unrelated individuals
The samples are from the same individual
The samples are identical
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of gel electrophoresis in DNA profiling?
It cuts the DNA into fragments
It creates a visual pattern for comparison
It amplifies the DNA
It sequences the DNA
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