General Genetic Principles
1 - 10 of 99 Answers
January 10, 2017:
If a mutation in a muscle cell in right little finger occurs, does that same mutation occur in the left big toe muscles. When and how?
December 13, 2016:
Does UV damage any part of the DNA or only a specific part? For example, can it damage a gene that codes for a protein involved in muscular contraction and paralyze us?
August 16, 2016:
How does a mutation in DNA cause a disease like sickle cell anemia?
March 23, 2016:
If a woman has two X chromosomes, how do we know which X chromosome each of her offspring has? She received one X from her mother and one X from her father. Will her offspring receive the X from her mother or the X from her father? Is there a 50/50 chance of either? Or does it depend upon the offspring's sex- i.e. females receive X chromosome donated from grandmother, males receive X chromosome donated from grandfather? Do we know for sure?
October 1, 2015:
Why don’t silent mutations cause problems? What makes them silent?
June 16, 2015:
I know that crossing over can happen along chromosomes, but can crossing over happen inside genes themselves? It seems from what I have read that it can’t.
May 27, 2015:
Why is it that some traits show as codominant, but others show as incomplete dominant?
April 29, 2015:
I am a female carrier of a red/green colorblind gene and have read that there is a probability of 1/2 of having an affected son if the father has normal vision. I have four sons and all four are red/green colorblind. Why don’t two have normal vision?
January 28, 2015:
I learned in class that chromosomes get shorter every time a cell divides and that most cancers get around this with something called telomerase. How does telomerase work and how do cancers that don't use telomerase keep dividing?
October 30, 2014:
I have learned about codominance, but are there some codominant traits in humans? For example, do some humans have one blue eye and one green eye, or are these traits just incomplete dominance?
- 1 of 10
- next ›
1 - 3 de 3 Respuestas
June 4, 2009:
Leí en su página de Internet acerca de los ratones que resultaron ser de diferentes colores debido a lo que comió la mamá mientras estaba embarazada. ¿Cómo funciona eso?
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?
September 30, 2004:
Creí haber escuchado a un geneticista decir en la television que el gen del cabello rubio tambien crea ojos azules. Acaso él quiso decir que solo la gente rubia puede tener ojos azules, es esto cierto?