What is the risk of hemophilia for her children? - ProProfs Discuss
Topics
Products
Follow Us:

What is the risk of hemophilia for her children?
II3 in the pedigree below has two brothers with hemophilia A, a bleeding disorder that is inherited as an Xlinked recessive trait.





A. 1 in 4 for a son, close to zero for a daughter
B. 1 in 2 both for sons and daughters
C. 1 in 2 for a son and 1 in 4 for a daughter
D. 1 in 2 for a son, close to zero for a daughter
E. 1 in 4 both for sons and daughters

This question is part of The Ultimate Pedigrees Quiz
Asked by Wyatt Williams, Last updated: Feb 06, 2020

+ Answer
Request

3 Answers

C. Marcus

C. Marcus, Content Developer, Washington

Answered Aug 08, 2019

The correct answer to this question is A, 1 in 4 for a son, close to zero for a daughter. This question includes a diagram, and the diagram is a pedigree. Pedigrees help show a relationship between an organism and the generations that came before the current organism. Many types of organisms benefit from pedigrees, including humans and dogs.

The diagram is easy to use and includes all kinds of important family information. Pedigrees include symbols that all represent something. The circles in the diagram represent females, and the squares represent males. Roman Numerals represent the generations.

 

C. Perez

Just getting better day by day

C. Perez, Writer, Writer, Cleveland

Answered Jul 15, 2019

The correct answer to this question is A, 1 in 4 for a son, close to zero for a daughter. The diagram in this question is called a pedigree chart. This chart shows family information in an easy to read form. The symbols in the chart all represent something. Circles represent females, and squares represent males.

The different Roman numerals represent the generations. I am generation one, II, is generation two, and so on and so forth. As this question shows, the chart can be used to analyze genes in humans, as well as dogs and horses. In animals, this chart can be used for selective breeding.

 

Wyatt Williams

Wyatt Williams

Answered Jan 30, 2018

1 in 4 for a son, close to zero for a daughter
 

Search for Google images
Select a recommended image
Upload from your computer
Search for Google images
Select a recommended image
Upload from your computer
Search for Google images
Select a recommended image
Upload from your computer

Email Sent
We have sent an email to your address "" with instructions to reset your password.