| Subject | Date Asked | Expert |
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| genes | 11/5/2009 | Dana Krempels, Ph.D. |
Q: 1- Do the genetic factore have any affects on prtection from A.I.D.s (H.i.v) illness ? 2- do the ...
A: 1 - Yes, very likely. Although most people are susceptible to infection by HIV, there are a few ...
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| help...reallly important | 11/5/2009 | John Locke |
Q: Cumulative Oxygen Consumed (mL) ______________________________________________ Time ...
A: I'm not entirely sure what you're asking here, but I'll tell you what I think. If you need to plot ...
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| eye colour genetics | 11/4/2009 | Dana Krempels, Ph.D. |
Q: I have a question about eye colour. I have blue eyes but my father has brown eyes and my mother has ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| Define 'Preformed' Organic Molecules as Applies to Heterotrophs | 11/4/2009 | John Locke |
Q: Can you please define 'preformed,'as applies to heterotrophs...obviously we can't convert sunlight ...
A: Your interpretation is correct: heterotrophs are defined by their consumption of complex organic ...
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| digestive system | 11/4/2009 | Walter Hintz |
Q: The human large intestine is the site of a symbiotic relationship.explain.
A: I just answered this question froma guy in Canada. When two separate species live togethe rfor ...
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| the digestive system | 11/4/2009 | Walter Hintz |
Q: i do not understand this question The human large intestine is the site of a symbiotic ...
A: Our intestine is occupied with species if bacteria that are symbionts. Symbiosis is the living ...
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| knee problems in Zulu people | 11/3/2009 | Dana Krempels, Ph.D. |
Q: i was wondering if you could point me in a direction or help me out with your knowledge,we were ...
A: Environment and genetics both play a role in the reslience of any body part to injury. But I am not ...
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| Urine | 11/3/2009 | John Locke |
Q: How is the urine of someone with damage to their cells in the glomerulus and glomerular capsule ...
A: The function of the glomerular cells is to provide a first-pass filter for the blood plasma as it ...
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| Diabetes | 11/3/2009 | Dana Krempels, Ph.D. |
Q: How Is Diabetes related to Biology?
A: Diabetes is a disorder in which the body does not properly process sugar, and it can manifest in ...
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| Length of time until new genetic mutations reveal themselves | 11/1/2009 | Dana Krempels, Ph.D. |
Q: how long does it take for new/unique genetic expressions to reveal themselves in populations of ...
A: That depends on the mutation. A dominant allele can manifest in the first generation, even if it's ...
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| Circulation | 10/31/2009 | John Locke |
Q: First let me say I am grateful to have found this website and appreciate your expertise and ...
A: Your question is a fundamental one about the anatomy and physiology of the heart, and it's important ...
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| Viable offspring from transgenic organisms | 10/31/2009 | Dana Krempels, Ph.D. |
Q: I would like to ask whether transgenic organisms (plants or animals) created in the lab usually ...
A: Most transgenic organisms created in the laboratory are perfectly capable of reproducing. The ...
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| bilogy | 10/30/2009 | Walter Hintz |
Q: why does natural selection acts on the Phenotype and not the genotype of an organism
A: The phenotype is the expression of the genetic code and it is the genetic makeup that natural ...
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| Hooves | 10/29/2009 | Dana Krempels, Ph.D. |
Q: How do hooves grow and how does the environment effect on the sizes of the hooves? Thanks
A: Hooves are homologous to our fingernails (they develop from the same embryonic sources in the ...
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| interview | 10/27/2009 | Walter Hintz |
Q: I was wondering if you would be interested in answering an interview? I am doing a project on what ...
A: 1 Mostly gram positive rod shaped bacteria. Bacillus species. Also harmless staph species 2 The ...
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| biology and physiology | 10/27/2009 | Walter Hintz |
Q: What are the changes in body structures and functions which dont let the dead person come to life ...
A: Cellular activity depends upon the proper functioning of the cellular membranes and these activities ...
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| Blonde Asians | 10/27/2009 | Dana Krempels, Ph.D. |
Q: I was wondering how myself and some (4 of 8) siblings ended up with natural blonde hair when our ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| My grandchild's hair and eye color? | 10/26/2009 | Dana Krempels, Ph.D. |
Q: My daughter-in-law's eye color is green with light brown/blond hair. My son has blue eyes and red ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| biology- energy | 10/25/2009 | Walter Hintz |
Q: I am am doing a study of comparison on an energy drink (red bull and pepsi) and what some of the ...
A: 1. The combo of high sugar and caffeine speeds up thr metabolic rate resulting in greater energy ...
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| question about mutation | 10/24/2009 | Dana Krempels, Ph.D. |
Q: Good morning There is a great question which confuses us in schools about reasons of multion ( ...
A: I believe you are referring to mutation, any change in the DNA that encodes the instructions for ...
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| SLEEPING!! | 10/23/2009 | Dana Krempels, Ph.D. |
Q: I WANT TO ASK WHY DO WE AUTOMATICALLY FEEL SLEEPY IN THE NIGHT?? IF WE SLEEP ALL THE DAY YET WE FELL ...
A: Almost all living organisms experience what's known as Circadian rhythms. These are natural cycles ...
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| Biology- Genetics | 10/23/2009 | Dana Krempels, Ph.D. |
Q: I am curious to know what colour hair our baby will have My gradnfather (mums dad) was a red head. ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| Bee vision colour yellow | 10/23/2009 | Dana Krempels, Ph.D. |
Q: I have read that bees can see blue and ultraviolet but not red, which probably appears as black to ...
A: Ah, sorry I misunderstood your question. The arthropod eye is completely different from that of a ...
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| Baby's hair color | 10/21/2009 | Dana Krempels, Ph.D. |
Q: Krempels I am curious as to what color hair my baby may possibly have. I have medium blonde hair ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| Bee vision colour yellow | 10/21/2009 | Dana Krempels, Ph.D. |
Q: I have read that bees can see blue and ultraviolet but not red, which probably appears as black to ...
A: Because color is a psychophysical phenomenon, we cannot really predict how bees perceive what we ...
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| Biology | 10/21/2009 | John Locke |
Q: I chose a science fair question, which is How does body position affect the autonomic regulation of ...
A: 1. I'm afraid the question is a little complex, so I'll have to answer it at length. First, height ...
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| sodium chloride | 10/20/2009 | Walter Hintz |
Q: Salt is made up (I read) of 40% sodium and 60% chlorine, making a compound sodium chloride. So with ...
A: Nutritional information on a package lists ingrediants by weight of a serving I nave a jar of ...
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| bio | 10/20/2009 | John Locke |
Q: Can all molecules diffuse through all cell membranes?
A: The answer is no--the ability of a molecule to diffuse through a cell membrane (or any membrane) ...
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| Height | 10/19/2009 | Dana Krempels, Ph.D. |
Q: 5
A: Human growth hormone is produced by the pituitary gland. You can read more here: ...
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| biology | 10/19/2009 | John Locke |
Q: is photosynthesis an endergonic or exergonic reaction
A: Photosynthesis is a net endergonic reaction; energy must be put into the reaction to drive it to ...
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| When is a moustache not a moustache? | 10/18/2009 | Dana Krempels, Ph.D. |
Q: Q1- i want to ask that our mustache is grown under our nose why not on our cheek or on some where ...
A: Your question really is about evolution, and why our species facial hair trait is the way it is. ...
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| Anatomy | 10/17/2009 | Walter Hintz |
Q: I would like to know how can I make an heart model. It is for a school project and it is meant to ...
A: I may be a biologist Jose but when it comes to creative art projects I am a flop. To make a heart ...
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| Biology | 10/16/2009 | Paras Anand |
Q: When vesicles from the Golgi apparatus deliver their contents to the exterior of the cell, they add ...
A: Just as many processes add membrane to the PM, similarly membrane is also taken from the PM and ...
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| i need help? | 10/16/2009 | John Locke |
Q: 1. The phospholipid molecules of most membranes have a : A - hydrophobic head and a hydrophilic ...
A: Sorry for the long delay in answering your question. The answers are given as follows, along with a ...
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| Science project on water purification | 10/15/2009 | Walter Hintz |
Q: I am a middle school student looking for some help on water purification.i will ask a few Q's: 1. ...
A: Water condensation on the outside of a cup has condensed from the air outside but the temperature ...
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| When is a moustache not a moustache? | 10/15/2009 | Dana Krempels, Ph.D. |
Q: Q1- i want to ask that our mustache is grown under our nose why not on our cheek or on some where ...
A: The "moustache" is called the moustache *because* it grows under the nose. That's the name that ...
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| baby | 10/14/2009 | Dana Krempels, Ph.D. |
Q: my moms side of the family all have dark hair and dark eyes my fathers side half half dark hair and ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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| genetic code | 10/13/2009 | Dana Krempels, Ph.D. |
Q: How could genetic code evolve as a results of random mutations (ie errors) and the other mechanism ...
A: I must answer this question by saying: No one truly understands the answer to this question yet. ...
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| Osmosis procedure | 10/12/2009 | Walter Hintz |
Q: I have an "experiment" if you will that I have to record data on. The only information given is ...
A: Question 1. The tubing only simulates a cell membrane because it allows water to pas through ...
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| Hair, skin and eye color genetics | 10/12/2009 | Dana Krempels, Ph.D. |
Q: two questions. 1.) can a child end up with blonde hair and blue eyes if it does not show up in ...
A: Human hair, eye, and skin color are very complex and difficult to predict, because each of these ...
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