NEW
Font size
WorksheetsPLTW PBS Semester 1 Final MC
Total questions: 10
Worksheet time: 6mins
Which of the following sets of evidence would be most useful to identify a suspect at a crime scene?
Shoe size and hair color
Fingerprint and DNA samples
Weather conditions and time of day
Location of incident and victims footwear
What do restriction enzymes do?
Amplify DNA sequences
Cut DNA at specific sequences
Separate DNA strands
Identify genetic mutations
What does PCR (Polymerase Chain Reaction) do?
Amplifies DNA sequences
Cuts DNA fragments
Determines blood types
Measures enzyme activity
What blood type is the universal donor?
A
B
AB
O
If agglutination occurs with anti-A but not anti-B antibodies, what blood type is present?
A
B
AB
O
Which of the following is a presumptive test for blood?
Kastle-Meyer test
Gel electrophoresis
PCR
RFLP
Why is DNA able to move through the gel during gel electrophoresis?
DNA is positively charged and moves toward the negative electrode.
DNA is negatively charged and moves toward the positive electrode
DNA fragments are neutral and move based on their size
DNA movement depends on its nucleotide sequence, regardless of size
Name the primary finger print pattern
Loop
Whorl
Arch
Accidental
The liquid part of blood made of mostly water, nutrients, and minerals.
Marrow
Plasma
Proteins
Urea
