Warning: Use of undefined constant referer - assumed 'referer' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 102

Warning: Use of undefined constant host - assumed 'host' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 105

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 106

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 109
Inheritance Problems - Online Essay

Inheritance Problems

Inheritance Problems (M3)

1. Phenylketonuria (PKU) is a genetic disease that can lead to poor development of brain. The allele for PKU is recessive to the allele for no PKU. A woman has found she is heterozygous for PKU. Her male partner is homozygous for the normal allele. You need to explain, (using genetic diagrams for a and b):

a. Why the woman does not suffer from the condition.

If neither of a PKU child's parents have the disorder themselves, they are carriers of the gene, or heterozygous for the condition. Heterozygous is the biological term for a person that has one dominant gene for a trait and one recessive gene. In individuals that are heterozygous for PKU, the ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

with the disease.

no

c. What percentage of their children are likely to be carriers?

6. 1. Carrier Mother + Non-hemophiliac Father When a carrier Mother and an unaffected Father create a child, each pregnancy has a 25% chance of resulting in a female noncarrier, a 25% chance of a female carrier, a 25% chance of non-hemophiliac male, and a 25% chance of a male with hemophilia.

2. If parents are aware of a genetic disease within a family, the examination of a family tree, sometimes called a pedigree diagram, A couple with a family history of sickle cell disease have sent you a pedigree diagram (shown below). The concerned couple are numbers 7 and 8 on the diagram.

Look at the family tree and using suitable symbols suggest what the genotype of individual 6 might be.

b. lf individuals 7 and 8 have children, what proportion of the children would be expected to be carriers of the disease?

3. Huntington`s disease (HD) causes cells in the brain to degenerate. A person ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.

Already a member? Login

CITE THIS PAGE:

APA
MLA
Chicago
Turabian

Inheritance Problems. (2016, June 1). Retrieved January 6, 2026, from http://www.essayworld.com/essays/Inheritance-Problems/105678

"Inheritance Problems." Essayworld.com. Essayworld.com, 1 Jun. 2016. Web. 6 Jan. 2026. <http://www.essayworld.com/essays/Inheritance-Problems/105678>

"Inheritance Problems." Essayworld.com. June 1, 2016. Accessed January 6, 2026. http://www.essayworld.com/essays/Inheritance-Problems/105678.

JOIN NOW

Join today and get instant access to this and 50,000+ other essays

PAPER DETAILS

Added: 6/1/2016 12:28:06 PM
Submitted By: mshelani
Category: Health & Medicine
Type: Free Paper
Words: 1051
Pages: 4

Save |

Report

SHARE THIS PAPER

SAVED ESSAYS

Save and find your favorite essays easier