All living things have __________nitrogenous bases in their DNA.
1 point
1
Question 2
2.
With the use of __________, trace samples of DNA evidence can be amplified.
1 point
1
Question 3
3.
__________ is used to trace paternal ancestry.
1 point
1
Question 4
4.
The Y chromosome _____.
1 point
1
Question 5
5.
The repeating STR sequences are located __________.
1 point
1
Question 6
6.
The sugar molecules in DNA are called __________.
1 point
1
Question 7
7.
Human remains are discovered during the excavation of a building site. The remains are decomposed beyond the point of being able to identify them as male or female. No clothing or other identifying items are found with the remains. Investigators identify the sex of the remains using _____.
1 point
1
Question 8
8.
A woman was raped by a man she did not know. Although he did not wear a disguise, her traumatic experience prevents her from being able to provide police with a description. The police have a semen sample, but the DNA analysis does not match anyone in the database.
The police may use _____ to get a visual representation of the suspect.
1 point
1
Question 9
9.
To avoid contamination of DNA evidence,__________.
1 point
1
Question 10
10.
DNA profiling is considered to be __________.
1 point
1
Question 11
11.
Instead of using physical traits, Dr. Jeffreys was the first to examine __________, regions of a person's DNA where high variation occurred among individuals.
1 point
1
Question 12
12.
CODIS, _____, is a program launched by the FBI in 1998.
1 point
1
Question 13
13.
The term __________ refers to all the DNA found in human cells.
The table shows data Chargaff collected on DNA nitrogenous bases in five organisms.
1 point
1
Question 14
14.
Which statement did Chargaff conclude based on these data? Note that a letter in brackets, such as [A] or [C], refers to the concentration of one of the nitrogenous bases.
1 point
1
Question 15
15.
If a foreign alien from outer space came to earth and had 29% thymine in their DNA, what percentage of their DNA consists of guanine?
Type your answer as a whole number (no decimals).
_______ %
1 point
1
Question 16
16.
Type the percentage:
_______ %
1 point
1
Question 17
17.
Type the percentage:
_______ %
1 point
1
Question 18
18.
Type the percentage:
_______ %
1 point
1
Question 19
19.
Type the percentage:
_______ %
1 point
1
Question 20
20.
Type the percentage:
_______ %
1 point
1
Question 21
21.
Type the percentage:
_______ %
1 point
1
Question 22
22.
The best conditions for storing DNA evidence are __________.
1 point
1
Question 23
23.
Sketching a person's physical characteristics through computer analysis of SNP profiles is called __________.
1 point
1
Question 24
24.
Almost all human cells contain all DNA in a singular place, the cell's nucleus.
1 point
1
Question 25
25.
The DNA base sequence within a gene contains coding sequences called exons, the region that expresses a protein.
Three babies were born on the same morning in the same hospital. When the babies were bathed, the identification bracelets slipped off and the nurses thought a mix-up may have occurred. The screen displays the DNA profiles of the babies and their parents. Use the DNA profiles to identify the parents of each baby.
3 points
3
Question 26
26.
Draggable item
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Corresponding Item
Glicks
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Baby 3
Meanys
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Baby 2
Moes
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Baby 1
1 point
1
Question 27
27.
Which skeletal remain(s) is not a descendant of the tsar or tsarina?
__________
1 point
1
Question 28
28.
DNA is shaped like a __________. The regions of DNA that code for proteins are known as __________.
1 point
1
Question 29
29.
What is the allele frequency of the "6" allele? Leave your answer as a decimal; round to 2 decimal places.
Make sure you scroll all the way down!
_______
1 point
1
Question 30
30.
Select all of the STR markers that are heterozygous for their alleles.