Content Frame
Note for screen reader users: There is text between the form elements on this page. To be sure that you do not miss any text, use item by item navigation methods, rather than tabbing from form element to form element
[Skip Breadcrumb Navigation]

Post-Test



This activity contains 23 questions.

Question 1
1
Open Hint for Question 1 in a new window
Which of the following bits of evidence left at a crime scene could be subjected to karyotyping?
 
End of Question 1


Question 2
2
Open Hint for Question 2 in a new window
Which of the following is recessive in pea plants?
 
End of Question 2


Question 3
3
Open Hint for Question 3 in a new window
Which of these crosses is expected to result in offspring that follow a 9:3:3:1 phenotypic ratio?
 
End of Question 3


Question 4
4
Open Hint for Question 4 in a new window
What are the chances that two parents who are heterozygous dominant for two traits of interest would have a child that is dominant for one trait, but not both traits?
 
End of Question 4


Question 5
5
Open Hint for Question 5 in a new window
Imagine a species of plant is discovered that has two common flower colors in the wild: red and yellow. When crossbred in the greenhouse, some offspring have flowers that have both yellow splotches and red splotches, similar to the pattern of a "tie-dye" shirt. This is most likely a case of
 
End of Question 5


Question 6
6
Open Hint for Question 6 in a new window
Blood typing can be a useful tool in forensic science because it
 
End of Question 6


Question 7
7
Open Hint for Question 7 in a new window
A person with blood type A ________ accept a transfusion from a person with type B blood because ____________.
 
End of Question 7


Question 8
8
Open Hint for Question 8 in a new window
Which of the following is an example of pleiotropy?
 
End of Question 8


Question 9
9
Open Hint for Question 9 in a new window
A plant with pink flowers is crossed with another plant with pink flowers. The offspring have the following phenotypes: one red flower, two pink flowers, and one white flower. Which of the following modes of inheritance determines flower color in these plants?
 
End of Question 9


Question 10
10
Open Hint for Question 10 in a new window
John has blood type O, which means he has two recessive i alleles and cannot pass blood type A or B on to his children. John alleges on a popular national TV show that his wife had an affair because their child has blood type A. He claims that because he has blood type O, he could not possibly have passed the A blood type to his child. What should the TV show host say to John?
 
End of Question 10


Question 11
11
Open Hint for Question 11 in a new window
A single gene on the Y chromosome is responsible for "maleness" in humans, which is why the presence of a Y chromosome results in the development of a zygote into a male. What would happen if this "maleness" gene were located on the X chromosome instead of the Y chromosome?
 
End of Question 11


Question 12
12
Open Hint for Question 12 in a new window
Red-green color blindness is an X-linked trait. Color vision (R) is dominant to red-green color blindness (r). Harriet and Jim are siblings; Harriet is color-blind, while Jim has normal color vision. Harriet wants to understand more about her color blindness and decides to construct a pedigree of her family for this trait. Harriet and Jim's father, Steve, is color-blind, and their mother, Molly, has normal color vision. Molly has two brothers, Chuck, who has normal color vision, and Peter, who is color-blind. Molly's parents (Harriet and Jim's maternal grandparents) are Susan and Will. Will has normal color vision. Susan is deceased, and no one knows whether she was color-blind or not. Harriet has not yet contacted her paternal grandparents about this topic. True or false: Harriet's grandmother, Susan, had normal color vision.
 
End of Question 12


Question 13
13
Open Hint for Question 13 in a new window
How many autosomes are there in a normal human body cell?
 
End of Question 13


Question 14
14
Open Hint for Question 14 in a new window
Sex determination in a fertilized egg is due to
 
End of Question 14


Question 15
15
Open Hint for Question 15 in a new window
True or false: Females cannot express a trait that is sex-linked and linked to the X chromosome.
 
End of Question 15


Question 16
16
Open Hint for Question 16 in a new window
Red-green color blindness in humans is an example of
 
End of Question 16


Question 17
17
Open Hint for Question 17 in a new window
When you see a housecat that has black and orange patches of fur, it is likely
 
End of Question 17


Question 18
18
Open Hint for Question 18 in a new window
Red-green color blindness is an X-linked trait. Color vision (R) is dominant to red-green color blindness (r). Harriet and Jim are siblings; Harriet is color-blind, while Jim has normal color vision. Harriet wants to understand more about her color blindness and decides to construct a pedigree of her family for this trait. Harriet and Jim's father, Steve, is color-blind, and their mother, Molly, has normal color vision. Molly has two brothers, Chuck, who has normal color vision, and Peter, who is color-blind. Molly's parents (Harriet and Jim's maternal grandparents) are Susan and Will. Will has normal color vision. Susan is deceased, and no one knows whether she was color-blind or not. Harriet has not yet contacted her paternal grandparents about this topic. Susan's genotype must have been
 
End of Question 18


Question 19
19
Open Hint for Question 19 in a new window
A woman has a disorder, and her husband does not. The disorder is inherited by half of her offspring, both male and female. Her children marry spouses who are normal. Of her daughters who have the disorder, half of their children also have the disorder. Of her sons who have the disorder, all of their daughters have the disorder, but none of their sons inherit it. The most likely mode of inheritance for this disorder is
 
End of Question 19


Question 20
20
Open Hint for Question 20 in a new window
In a pedigree, if an individual is affected with a disease but both of his or her parents are normal, then that disease is most likely
 
End of Question 20


Question 21
21
Open Hint for Question 21 in a new window
Joey was about to learn who his biological father was because the court had ordered DNA fingerprinting to be done, and he could hardly wait to see the results. He had seen an example of a DNA fingerprinting gel that had several columns with patterns of black lines. If Joey saw the results of his DNA fingerprint compared to his parents' fingerprints, what would he expect to see?
 
End of Question 21


Question 22
22
Open Hint for Question 22 in a new window
How could DNA testing of Prince Philip provide information about the identity of the Romanov family, even though Prince Philip does not suffer from hemophilia?
 
End of Question 22


Question 23
23
Open Hint for Question 23 in a new window
Which of the following statements about RFLPs is true?
 
End of Question 23


Clear Answers/Start Over




Answer choices in this exercise appear in a different order each time the page is loaded.




Copyright © 1995 - 2012 Pearson Education . All rights reserved. Pearson Benjamin Cummings is an imprint of Pearson .
Legal Notice | Privacy Policy | Permissions

[Return to the Top of this Page]