Chromosomes are located on large structures in the cell called genes.
F
DNA is in every nucleated cell of the human body.
T
The basic unit of all living things is the gene.
F
A single strand of human DNA would reach around the world.
F
Even identical twins have differences in their DNA.
F
Genes are made up varying numbers of base pairs.
T
Red blood cells can be used to type DNA.
T
RFLP is the most common type of DNA typing performed in labs today.
F
Hydrogen bonds are extremely strong bonds.
F
Mitochondria are found within the cell's nucleus.
F
The FBI maintains an offender index with DNA profiles that can be linked to crime scene evidence.
T
The heavier, denser molecules move the furthest on an electrophoresis gel.
F
The human body has approximately
a.
35 genes
c.
35, 000 genes
b.
3500 genes
d.
350,000 genes
C.
T always pairs with
a.
A
c.
G
b.
C
d.
another T
A.
C always pairs with
a.
A
c.
T
b.
G
d.
another C
B.
The sequence of base pairs for all humans is:
a.
0.1% the same
c.
90% the same
b.
10% the same
d.
99.9% the same
D
Assume that two strands of DNA have been separated and that the base sequence on one strand is TTGC. What is the sequence of bases on the complimentary strand?
AACG
DNA base pairs are held together with
nitrogen
Nitrogen
Each of the DNA bases contains the element
Oxygen
A base, a sugar molecule and a phosphate group is called a
Nucleotide
Which of the following is NOT a means of DNA typing?
all of them
To characterize DNA using RFLP, the DNA must be cut into smaller pieces using:
Restriction Enzymes
A procedure that separates DNA fragments according to size is:
Electrophoresis
Which of the following is NOT part of the RFLP process
Differentiating
PCR is a technique scientists use to:
Generate more copies of DNA when only a small amount is available
The person responsible for the development of PCR testing is (was):
Kary Mullis
The use of DNA typing began:
In the 1980's
The use of STR's began in the:
1990's
Evidence from a crime scene that can be used for DNA typing includes:
All of them
DNA from nucleated cells is inherited from:
The mother and father
Mitochondria DNA (mtDNA) is inherited from:
Only the mother
Polymerase is a(an):
Enzyme
Which of the following is NOT an advantage of using STR instead of RFLP?
It can be put into CODIS and RFLP can't
What is used to separate the DNA molecule in the PCR process?
cooling
Heating
STR's are amplified by using:
PCR
The preferred number of loci for STR typing is:
13
The database that stores DNA profiles is:
CODIS
The advantage in using more than one loci for STR typing is that:
The probability of matching another's DNA dramatically increases
Which of the following is NOT true about mitochondrial DNA?
It is more costly
Who was the Green River Killer?
Gary Ridgway
Chromosomes are found in the:
Nucleus
On your STR, the loci marked AMEL is your:
Gender
____ 46. Inheritable traits that are controlled by DNA arise from its ability to produce:
Proteins
Humans have:
22 pair of body chromosomes and 1 pair of sex chromosomes
The process of making many copies of DNA is:
amplification
An enzyme that assembles a new DNA strand in the proper base sequence determined by the original strand is called:
Polymerase
An exact location on the DNA molecule of a gene or area on interest is called:
A loci
The four base pairs of DNA are ____________________, ____________________, ____________________, and ____________________.
Cytosine guanine thymine adenine
A ____________________ is a portion of a DNA molecule with a known sequence used to find its complimentary strand.
Primer
____________________ are locations on the chromosome that repeat a specific sequence of two to five base pairs.
Loci or str
Humans have ____________________ pair of chromosomes in their body cells.
23
____________________ and ____________________ are the two who are credited with the discovery of the structure of DNA
Crick, watson