DNA
DNA2
Random
Blood1
Blood2
100
What does DNA stand for?
-Deoxyribonucleic Acid
100
What is the purpose of DNA?
-Carries an organisms genetic information
100
The following passive drops originated from 1 ft., 2 ft, and 3 ft. Which one of the drops most likely fell from 1 ft.?
B
100
-A term used to describe a broad range of
laboratory tests using reactions of blood serum and
other body fluids.
-Serology
100
The height from which the blood falls will affect the
size of the stain, with greater heights tending to
result in __________ bloodstains.
Larger
200
What are the four bases that make up DNA? (Rungs of the ladder)
-Adenine, thymine, cytosine, guanine
200
When DNA is found, it is compared to DNA entered in the national database - this database is known as?
CODIS (Combined DNA Index System)
200
Which of the following drops were most likely dropped from a 90⁰ angle?
A.
200
Red blood cells contain hemoglobin and iron. Iron reacts with the ingredients in ____________ which can be made visible with a UV light.
-Luminol
200
______________ can be determined by analyzing
the tail of the bloodstain.
-Directionality
300
What would the the complementary base pairing to the following DNA strand: ATCGGCTACGT
-TAGCCGATGCA
300
Who developed the process of DNA profiling?
Alec Jeffreys
300
Which suspect committed the crime?
-Suspect 1
300
What are the four main blood types?
-A, B, AB, O
300
Investigators place strings down the long axis of the blood spatters. Where the strings intersect is called the
-Area of Convergence
400
DNA is a polymer that consists of many monomers called _______________.
-Nucleotides
400
What is the purpose of Gel Electrophoresis?
-Gives us a DNA Fingerprint
400
Create a drawing explaining the relationship between DNA, genes, chromosomes, the nucleus, and cell.
400
Which blood type is considered the universal donor?
O-
400
How is the angle of impact determined from a blood spatter?
-arc sin (width ÷ length) or sin-1 (width ÷ length)
500
What does a nucleotide consists of? (3 parts)
-A phosphate group, a sugar called deoxyribose, a nitrogen-containing base
500
What are the steps of gel electrophoresis?
Cells broken down to release DNA (DNA extraction)
DNA strands cut into fragments
Fragments separated
Pattern of fragments analyzed - This entire process is known as electrophoresis
500
The following DNA profile is part of a paternity test that is seeking to confirm which male is the father of the baby represented in the profile. Who is most likely the father of this baby?
-Male 2
500
What antigens are found on type AB blood? What antibodies does it have?
-A and B Antigens
-None!
500
How would you find the angle of impact for the following:
sin-1 (1.5/3.0)