WorksheetsCSI Wildlife Check in
Total questions: 23
Worksheet time: 16mins
To repeatedly copy a molecule such as DNA, usually until there are billions of copies present.
Amplify
Base Pairs
Flanking Sequence
DNA Fingerprint
Collection of DNA fragments that can be used to identify genetically unique individuals
Amplify
DNA Ladder
DNA Fingerprint
DNA Analysis
Lab technique used to amplify DNA sequences to produce billions of copies of a fragment of DNA.
Short Tandem Repeats (STR)
Polymerase Chain Reaction (PCR)
DNA Fingerprint
Flanking Sequence
Variable segments of DNA, contain repeats of same sequence of nucleotides one after another
Short Tandem Repeats (STR)
Flanking Sequence
Gel Electrophoresis
Allele
Gel Electrophoresis separates molecules by...
amino acids
Color of DNA fragment
Size of DNA fragment
Atomical structure
Having two identical alleles at a given locus.
Heterozygous
Homozygous
Frequency
This laboratory procedure is known as
CLONING
gel electrophoresis
chromatography
use of a dichotomous key
In preparation for an electrophoresis procedure, restriction enzymes are added to DNA in order to
convert the DNA into gel
cut the DNA into fragments
change the color of the DNA
produce longer sections of DNA
Which two bear species are most closely related?
Bear 1 and Bear 2
Bear 1 and Bear 3
Bear 2 and Bear 3
There’s no way to tell
DNA fingerprinting works because
Most genes are dominant
All organisms contain RNA
The most important genes are different among most people
No two people, except identical twins, have exactly the same DNA
Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?
DNA is negatively charged so attracted to the positive end of the unit
DNA is positively charged to attracted to the negative end of the unit
the agarose gel in negatively charged
the agarose gel is positively charged
In gel electrophoresis, the largest DNA fragment will appear
closest to the starting wells
farthest from the starting wells
three quarters away from the starting wells
it depends on how many fragments there are
What is the correct claim for this crime scene?
Suspect 1 committed the crime.
Suspect 2 committed the crime.
Suspect 3 committed the crime.
Suspect 4 commited the crime.
Need more evidence to make a claim.
Pattern of DNA fragments obtained by examining a person's unique sequence of DNA pairs.
DNA Fingerprint
Allele
Chromosome
Based on these results whose blood was found in the blood stain at the crime scene?
Bob
Sue
John
Lisa
Are the elephants homozygous or heterozygous for the gene shown from marker C?
both are heterozygous
one is heterozygous and one is homozygous
both are homozygous
What is the approximate size of the largest fragment for elephant #1 (on left)?
200 base pairs
180 base pairs
190 base pairs
70 base pairs
Are the elephants homozygous or heterozygous for the gene shown from marker B?
both are heterozygous
one is heterozygous and one is homozygous
both are homozygous
What applications can gel electrophoresis be used for?
Parental Testing
Criminal Investigations
Sequence Endangered Species DNA
All of the above
A student performed a gel electrophoresis experiment. The results are represented in the diagram
below. Compared to the fragments at the top of the gel, the fragments at the lower end are
larger, and move slower and stay closer to the starting well
larger, and move faster & farther through the gel
smaller, and move faster & farther through the gel
smaller, and move slower & stay closer to starting well
This technique used to analyze DNA involves the
synthesis of new DNA strands from subunits
separation of DNA fragments based on size
production of genetically engineered DNA molecules
removal of defective genes from DNA
In gel electrophoresis, the smallest DNA fragment will appear
