If the trait is displayed in offspring, at least one parent must show the trait. The trait is present whenever the corresponding gene is present generally. I would like to research about the interaction between neurons and, recently encountered a Question: Why are two neurons separated by a synapse? What will happen if they are joined together? Also, we know that the information to be transmitted across neurons, is copied to many synaptic vesicles.
Why is the same information copied various times? Ramachandran is that, why do we have multiple backup like copies of a single part of the body?
Please reply. View All Replies 2. Thank you for the excellent answers. These have broadened my thoughts now. Neuroscience is a great and complex subject indeed!
I feel like this is being proved again and again, in each step of detailed analysis of such basic structures like neurons. I have a simple doubt now. Are neurons the fundamental structures from where studies to understand the interaction between two neurons can begin? I know that a neuron is a composed of a soma, nucleus, axon, dendrites, etc.
But these form the parts of the neuron. Are there any sub atomic by sub atomic, I mean indivisible structure, which determines the whole functionality of a neuron? Or is it also a damn composite structure like atoms whose entire behavior is determined by the sub atomic particles like quarks, bosons, leptons, gluons, etc.? Another request is, please suggest me a few materials from where I can start my research on the detailed analysis of the structure of a neuron and interaction between two neurons of all kinds, neurotransmitters or electric signal transmitters.
Thank you in advance. Reply From: ashraya s shiva Nov 11, AM. Sunanda Nath Location: India. M N Location: United States. David Hockney Location: United States. Moatter G Location: United States. Send Message To user. Send Cancel. Post your genetics question.
View All Questions. Example: In mice, black coat color is dominant, and white is recessive. The black allele is represented by the letter B, and the white allele is represented by the letter b.
Two black mice that are heterozygous Bb for the black phenotype produce offspring. The following Punnett square represents the possibilities for their offspring. So both of the heterozygous Bb parents have the dominant black coat color, but the next generation, their offspring, could have the homozygous recessive genotype bb , producing the recessive white coat color.
I am going to use your story as a way of explaining why this is. I'll also use the figure below to show what I am saying in picture form. So I will do what geneticists do. I will call the non-red version of the MC1R gene R and the red version r. I also used that naming system in the figure.
Imagine that your grandfather was a redhead and that your grandmother wasn't a carrier. This would make grandpa rr and grandma RR. None of their kids would have red hair but they would all be carriers because grandpa would pass on his red hair gene. All the kids have a non-red copy of the MC1R gene R from grandma and a red copy r from grandpa -- they would all be Rr.
Let's say one of these kids is your mother and that your father wasn't a carrier. In other words, your mom is Rr and your dad is RR. Your mother has an equal chance of passing either the red r or the non-red R version to her kids.
Let's say she passed the red hair version to you. Since your dad wasn't a carrier, this means he passed only a non-red version R to you. So you are a carrier for red hair Rr. So now we have gone two generations without a redhead. Imagine that something similar happened on your husband's side of the family.
Now here you are, both carriers for red hair Rr.
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