Dominant vs. Recessive

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August 29, 2013: Both parents have brown eyes and brown hair. They have twins and one has brown hair and blue eyes while the other have blonde hair and blue eyes. Which features are dominant and how do you know?
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May 30, 2013: My dad has crooked pinkies.  My mom does not.  All of my brothers and sisters have crooked except for one of my brothers.  Why is it that he doesn't have crooked pinkies?
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March 27, 2013: In people with one dominant and one recessive gene, does the recessive gene not make anything?  If so, does the dominant gene stop the recessive gene from making anything?  Or, does the recessive gene make a broken protein?  If the recessive gene makes something, shouldn’t it be incompletely dominant or co-dominant?
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October 5, 2012: I have a report on mutation related diseases and I will be writing about Sickle Cell Anemia because it is interesting. You see, people have this notion that mutation is bad and I want to change that. I want to show the good side of mutation, in this case malaria resistance. I want to add more. Can you give me other mutation related stuff that is beneficial?
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February 2, 2012: Can a recessive trait become dominant?
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January 5, 2012: I've always wondered what role a grandparent plays in the traits of his or her grandchildren. For example, I have blonde hair and blue eyes; my mother and father have brown hair and hazel eyes and black hair and blue eyes, respectively. What kind of effect would this have on my children? If, say, my wife was also blonde and blue-eyed, would it somehow lessen the chances of our children being blonde and blue-eyed?
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October 19, 2011: If people with Rh- in their extended family keep marrying into strong Rh bloodlines, is it possible to wipe out the Rh- out of a bloodline completely? So much so that eventually the Rh- won't be able to recur in their offspring?
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October 12, 2011: Which parent gives you the most dominant genes?
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September 15, 2011: I find this all very confusing but if a person has a dominant trait, can they know their genotype for certain? For example, if they can roll their tongue would they know what genes they have?
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June 3, 2010: How do you know what eye color for example would be dominant or recessive?
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1 - 1 de 1 Respuestas

September 1, 2006: El alelo dominante de un rasgo aparece como el fenotipo predominante en la población en general? Por ejemplo, la presencia de los hoyuelos es controlada por un alelo dominante, pero la mayoría de la gente no tiene hoyuelos. Por qué ocurre esto?
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