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Holandric

Holandric

(Science: genetics) refers to genes that are transmitted solely through male descent, in humans, holandric genes are located on the y chromosome.


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Pedigree problem

... of inheritance for the white-eyed trait? (a) autosomal dominant (b) autosomal recessive (c) sex-linked dominant (d) sex-linked recessive (e) holandric" The solution is..."(D) Here is the first cross. [A Punnett Square without the boxes, as I can't seem to create them] X Y X- X-X ...

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by thewax
Sun Dec 14, 2008 6:42 am
 
Forum: Genetics
Topic: Pedigree problem
Replies: 6
Views: 5338

How far back do you "reach" for your genetic traits?

There are some traits that are determined by genes on the Y chromosome, and thus are transmitted from father to son. This is termed holandric inheritance. As for genes transmitted only from mother to daughter, I would say this shouldn't normally be the case. But there are exceptions. X-linked ...

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by MrMistery
Sun May 04, 2008 1:52 pm
 
Forum: Genetics
Topic: How far back do you "reach" for your genetic traits?
Replies: 4
Views: 4837

y chromosome disorders

Up to now, only few Y-linked genes has been identified (holandric genes): 1. resesive gene "wt", causing membranes that appeared between fingers and toes (similar to the ones on frogs or ducks). Its allel, Wt, for normal condition. 2. resesive gene "hg", ...

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by Dr.Stein
Fri Jul 29, 2005 9:31 am
 
Forum: Genetics
Topic: y chromosome disorders
Replies: 5
Views: 8452


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