| Subject | Date Asked | Expert |
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| eye color | 11/13/2009 | Darren Raffety |
Q: Recently I heard that 2 brown-eyed people can not have a child with blue eyes. I have also heard ...
A: Your right to be confused having heard so much contradictory advise! Thank you very much for the ...
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| Cleft chins on newborns. | 11/11/2009 | Darren Raffety |
Q: I'm 6 months pregnant with a boy. My boyfriend has a cleft chin, though neither of his parents have ...
A: Yes it is entirely possible. There are two genes responsible for a cleft chin. One of those genes ...
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| DNA | 11/7/2009 | Darren Raffety |
Q: Either by observation or testing, does DNA give any indication of the passage of time?
A: Fantastic question! There isn't actually a correct answer as of yet, still highly debated. ...
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| Chin dimple & rolling tounges | 11/6/2009 | Darren Raffety |
Q: We had a daughter who has a chin dimple (as does my hiusband). He is under the impression that all ...
A: I can understand where the doubt is coming from and this is a much asked question. Firstly, ...
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| question please | 11/3/2009 | Darren Raffety |
Q: I have a quick question can DNA tests for paternity ever be wrong? Assuming no tampering,expert ...
A: I'm trying hard not to reach any conclusions on whom is telling the truth ect and I'm a little ...
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| Question on clif chins | 11/3/2009 | Darren Raffety |
Q: My boyfriend and I had a baby with a clif chin.He said it is not possible that my son is his because ...
A: To obtain a cleft chin, there are two genes required. One of those genes codes for the proteins that ...
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| skin tone | 11/3/2009 | Darren Raffety |
Q: i am having my 3rd baby with my husband. we don't know if its a girl or boy yet. but we keep ...
A: Hey Alecia, Unfortunately, it is extremely difficult to predict any characteristic of your baby, ...
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| Cofused about brown/brown eyes haveing a blue eyed baby | 11/1/2009 | Darren Raffety |
Q: Ok so ive been searching everywhere for an answer to this question can a person who has brown eye ( ...
A: I understand your confusion! Eye colour is actually controlled by at least 6 different genes. The ...
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| what will our baby girl look like?? | 10/31/2009 | Darren Raffety |
Q: hello im 7 months pregnant i hav dirty blonde straight hair with greenish blue eyes and fair skin my ...
A: It really is impossible to determine the characteristics of an unborn child. This is because any ...
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| eye color | 10/30/2009 | Darren Raffety |
Q: I am pregnant and hoping that our child will get my blue eyes, not that my husbands brown aren't ...
A: Hey Erin, You're right that it is the luck of the draw! Unfortunately, eye colour is determined ...
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| question please | 10/29/2009 | Darren Raffety |
Q: I have a quick question can DNA tests for paternity ever be wrong? Assuming no tampering,expert ...
A: Its a difficult situation however, mosaic twins are not only extremely rare but will still have some ...
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| eye colouring | 10/29/2009 | Darren Raffety |
Q: if a mother and father both have blue eyes is it possible for there baby to have brown eyes or ...
A: Eye colour is determined by more than one gene so it doesn't automatically follow that their baby ...
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| question please | 10/28/2009 | Darren Raffety |
Q: I have a quick question can DNA tests for paternity ever be wrong? Assuming no tampering,expert ...
A: There are two situations to consider in paternity tests relating to accuracy. In a situation where ...
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| balanced translocation and cancer | 10/27/2009 | Darren Raffety |
Q: I was wondering if there was an increase in incidence of ALL in patients with the t(5;14) balanced ...
A: There has been growing evidence of a link between ALL and the t(5;14) balanced translocation for ...
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| Twins!! | 10/26/2009 | Darren Raffety |
Q: My twin is male an he has two kids but they are not twins. My father is a identical twin as well as ...
A: It is almost impossible to determine whether you're going to have twins or not or whether they would ...
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| Is this possible? | 10/24/2009 | Darren Raffety |
Q: Okay my boyfriends parents are mexican but his mom is light skinned, brown hair, and brown ...
A: This is perhaps the most interesting side of genetics for most people. Inheritance of genetic ...
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| Evolutionary genetic mutation | 10/23/2009 | Darren Raffety |
Q: My understanding of evolutionary change is that it relies on mutations to occur, these more ...
A: Hey Jason, Thanks for a very in depth question! Your correct in your assessment that, in most ...
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| Blood group | 5/13/2009 | Sophia Jane |
Q: I am O+ and my husband is B+. What blood type will our baby be? Can you please explain? Thank you.
A: Geetha. Blood type is determined by the blood group (A, B, AB, or O) and the rhesus factor (+ or ...
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| Chances of having twins | 5/12/2009 | Sophia Jane |
Q: I was wondering if you could tell me what the chance is of me having twins. I am a fraternal twin. ...
A: Kellie. Wow, you must have a big family, with all those twins running around! :-) You're right to ...
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| DNA and heredity | 4/16/2009 | Terri Bergan |
Q: I am a 4th grader doing a project on DNA, as part of it I need to interview an expert in the field. ...
A: There is a gene to inherit pigment (colour). Blue eyes is not having any pigment. So whether you ...
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| Help me figure out whats in my gene pool with such mixed backgrounds | 4/7/2009 | Terri Bergan |
Q: I've always found this dominate and recessive gene subject very intresting! Especially coming from a ...
A: There is a lot of European genes in the Brazilian gene pool and there are fair and blue eyed ...
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| probability of blue eyed son to 2 brown eyed parents | 4/4/2009 | Terri Bergan |
Q: I am a Mexican American with 9 siblings, both parents,aunts, uncles and grand parents having dark ...
A: If there is no blue eyed genes in your background, then there is a greater likelyhood the child ...
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| Genetic difference between sexual partners | 3/16/2009 | Terri Bergan |
Q: my question applies to male-female couple within the same species (e.g. Homo sapiens). Imagine that ...
A: Other than physical barriers (ex. a small chihuahua trying to mate with a giant Great Dane), I don't ...
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| gene mutations | 2/28/2009 | Terri Bergan |
Q: How can a gene mutation that is in every cell in the human body only affect one part of the body, ...
A: If you think about it, every single cell in a human body contains the same information. But, not ...
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| Question about my genotype? | 2/28/2009 | Terri Bergan |
Q: I was wondering about my genotype because I'm a bit confused on the inheritance of a certain gene... ...
A: I do not know all the complexities of hair colour inheritance in humans, as you can tell, it is ...
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| BABY HAIR COLOR | 2/26/2009 | Terri Bergan |
Q: I KNOW THAT GENETICS ARE A CRAP SHOOT, BUT I WAS WONDERING WHAT THE MOST PROBABLE OUTCOME WOULD BE ...
A: Red being recessive can hide for many generations. Many other colours are recessive as well. You ...
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| Hair | 2/25/2009 | Terri Bergan |
Q: Does stress turn your hair grey? I am doing a science research essay and this is my subject. Oh ...
A: Genetics does play a big factor in when or if you turn grey. To my knowledge there isn't any ...
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| ear lobe, gentics | 2/12/2009 | Terri Bergan |
Q: my son has loose ear lobes but both myself and the potential father both have attached. is this ...
A: It's hard for me to tell from your statement whether or not you think their might be a potential ...
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| mendelian genetics | 2/9/2009 | Terri Bergan |
Q: I do have another question which i think i am on the right track! 3. Suppose that a husband and ...
A: I haven't done this type of probability questions in ages. The answer isn't 50/50. There would be ...
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| Race determination | 2/8/2009 | Terri Bergan |
Q: If father is black and mother is of another color is that child consider black? Or if father is ...
A: My knowledge is that skin colour alone certainly isn't what determines racial identity. I teach a ...
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| how is a protein made? | 2/5/2009 | Terri Bergan |
Q: I have to write an essay on how a protein is made starting with the role of DNA. Also which enzymes ...
A: The major components to protein production are 1) transcription of the DNA in the nucleus 2) post ...
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| DNA Etc. | 1/30/2009 | Terri Bergan |
Q: I have been taking more interest in science lately than I did when I was at school and I wonder if I ...
A: The number of base pairs and the sequences of base pairs differ from species to species. So what ...
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| Mieosis | 1/29/2009 | Terri Bergan |
Q: what is the difference between trisomy and triploidy?
A: Trisomy is one extra chromosome of a pair. For example trisomy 21 results in Down Syndrome and is ...
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| Stem Cells | 1/9/2009 | Terri Bergan |
Q: I am having alot of trouble with some of these questiond on Stem Cells. I would love it if you could ...
A: These are homework style questions. I will help you with the first one then you need to use that ...
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| chromosones | 12/31/2008 | Terri Bergan |
Q: My friend has a newborn son who the doctors say that his 1st and 3rd chromosones are switched. What ...
A: This is a little vague as I'm not exactly sure what is meant by "switched". It's possible that they ...
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| fraternal twins? | 12/25/2008 | Terri Bergan |
Q: My husband is a fraternal twin, how likely is it for me to have twins? Would they be fraternal too ...
A: Fraternal twins results from the female ovulating more than one egg during her mentstrual cycle. It ...
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| mixed race the baby will get redhair? | 12/18/2008 | Terri Bergan |
Q: I tired to find research about mixed race baby that have a red hair in real life. I wouldn't find ...
A: There is always the possibility that you have a red haired gene hiding in your background. A large ...
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| energy cell | 12/11/2008 | Terri Bergan |
Q: What is the net production of ATP moelcules by each of the four reactions?
A: This definitely sounds like a homework question, but I will get you started. Anaerobic respiration ...
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| skin tone | 12/10/2008 | Terri Bergan |
Q: what is the reason for me aving dark skin if both my parents and their parents have light skin. ...
A: Skin colour is produced by a significant number of genes. It isn't simply inherited. It falls ...
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| eye colour and hair colour question | 12/6/2008 | Terri Bergan |
Q: I have a 4 month old baby boy who was born with bright blue eyes and dark blonde hair I was ...
A: Some babies eyes change colours later than others, although usually the darker the eyes will be the ...
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