PBS Unit 1 Review
Which kind of evidence is most precise in narrowing down who was at a crime scene?
Finger Print
What is the application of science to clinical medicine?
Forensic Science
What strand is complementary to CAGT?
GTCA
What nitrogenous base pairs with adenine?
Thymine
Why is it important to document sources of information?
To give credit to the Author
In which situation CAN private health information be shared?
To prevent spread of diseases
Which of the following is done at a crime scene?
1. Close off Area 2. Photograph 3. Collect Evidence
What is the difference between purine and pyrimidine bases?
2 rings, 3 ring
Adenine makes up 20% of the DNA of an organism, how much of the DNA will be guanine?
30%
What is the manner and cause of death of a person texting and driving who ran into a wall?
Accidental
What can be used to determine time of death?
Algor Mortis
What substance was found at the crime scene?
Aspirin
What evidence at the crime scene would contain DNA?
Blood
Which of the following happens during the external examination of an autopsy?
Bruises and cuts are recorded
What is the role of restriction endonucleases?
CUT DNA
Which body system is responsible for delivering oxygen and nutrients to bones?
Cardiovascular
What is the primary purpose of an autopsy?
Cause and Manner of Death
Which of the following is NOT found in DNA?
Chromosomes
Which body system is most closely associated with pumping blood and transporting oxygen?
Circulatory system
Which of the following is an inference about Anna Garcia?
Clumsy
What is the part of the experiment where the IV is not applied?
Controlled
Who is a person with a medical degree that declares death at an accident & notifies the family?
Corner
What causes human diversity?
DNA Sequence
What is the variable that is measured in an experiment?
DV
Which body system is associated with breaking down food and absorbing nutrients?
Digestive System
Which is correct when focusing a microscope?
Do not let objective lens touch the slide
What causes the separation of DNA fragments during gel electrophoresis?
Electricity
What can be determined by the diameter of a blood drop?
Height at what she fell from
Which is an example of an observation?
Her sweater is Wool
What is a prediction of anticipated results in an experiment?
Hypothesis
Which variable in an experiment is manipulated by the researcher?
IV
Which body system includes lymph nodes, spleen, thymus, and bone marrow?
Immune System, Lymphatic systems
Which segment of DNA would move slowest through an agarose gel during electrophoresis?
Longest one
Which of the following is not a manner of death?
Manslaughter
Which body system responds to internal and external changes by processing information?
Nervous System
DNA is comprised of what repeating subunits?
Nucleotides
Through what process are scientists able to produce millions of copies of DNA?
PCR (polymerase chain reaction)
Adenine and guanine are what type of nitrogenous base?
Purines
What is produced as a result of DNA being cut at specific nucleotide sequences?
RPLFS
What is the role of detergent when isolating DNA?
Separating cell membranes
Why is data collection so important in experimental design?
To support conclusion
What characteristic separates DNA fragments during gel electrophoresis?
agarose gel
The backbone of DNA is comprised of what two groups?
deoxyribose and a phosphate group
What is the structure of purines?
four nitrogens and five carbons, pyrimidine have two nitrogens and four carbons.
During gel electrophoresis, DNA moves toward the _____ end because DNA has a _____ charge.
postive, negative
During gel electrophoresis, the larger fragments of DNA move _________ the smaller fragments.
slower
