3.31 Unit Review
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an STR?
Back
Short (2–5 base pair) sequences that are repeated one next to each other in non-coding portions of the DNA.
2.
FLASHCARD QUESTION
Front
What does horizontal gaze nystagmus assess in a field sobriety test?
Back
The ability to track an object with the eyes alone.
3.
FLASHCARD QUESTION
Front
How does ninhydrin develop latent fingerprints?
Back
Ninhydrin reacts with amino acids in the perspiration of the fingerprint.
4.
FLASHCARD QUESTION
Front
Which structure is larger in animal hairs than in human hairs?
Back
Medulla.
5.
FLASHCARD QUESTION
Front
What is the most commonly used method in modern DNA typing?
Back
STR (Short Tandem Repeats).
6.
FLASHCARD QUESTION
Front
Define the term 'medulla' in the context of hair structure.
Back
The central core of a hair strand, which can vary in size and presence between different species.
7.
FLASHCARD QUESTION
Front
What is the purpose of a field sobriety test?
Back
To assess a person's physical and cognitive abilities to determine if they are impaired.
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